Publications


2023

    Journal Publications
  1. Yuta Shimamura, Haisong Jiang, Ryota Kuwahata, Younjin Kim, Kensei Yamauchi, Ryoma Matsuo, and Kiichi Hamamoto, “Precise asymmetric power-splitter (1.7:1) by using nano-pixel waveguide,” Electronics Letters, Vol. 59, No. 11, pp. 1-3, Mar. 2023 DOI:10.1049/ell2.12831
  2. Haisong Jiang, Yuta Shimamura, Ryota Kuwahata, Kensei Yamauchi, Ryoma Matsuo and Kiichi Hamamoto, “9:1 Asymmetric power splitter based on nano-pixel waveguide,” IEEE Photonics Technology Letters, Vol. 35, No. 22, pp. 1239-1242, Nov. 2023 DOI: 10.1109/LPT.2023.3313944
  3. He Xiao, Yudai Kawano, Haisong Jiang, Kiichi Hamamoto, “The proposal of a photon–photon resonance control scheme by using an active MMI laser diode,” Photonics, Vol. 10, No. 12, pp. 1298, Nov. 2023 DOI:10.3390/photonics10121298
    Conference Publications (International)
      2023 European Conference on Integrated Optics
    1. Yuta Shimamura, Haisong Jiang, Kensei Yamauchi, Ryota Kuwahata, Ryoma Matsuo, and Kiichi Hamamoto, “Demonstration of Nano-pixel 9:1 Asymmetric Power Splitter,” Proceeding of 24th European Conference on Integrated Optics (ECIO2023), Th2.3, pp. 51-53, 20th Apr. 2023
    2. Haisong Jiang, Cangui Tang, and Kiichi Hamamoto, “Optical Isolator Element Using Nano-pixel for Photonic Integrated Circuits,” Proceeding of 24th European Conference on Integrated Optics (ECIO2023), ID 158, pp. 189-191, 20th Apr. 2023
      OptoElectronics and Communications Conference (OECC)
    1. Cangui Tang, Haisong Jiang, and Kiichi Hamamoto, “Mode-demultiplexer by using nano-pixel,” Technical digest of　28th Optoelectronics Communication Conference (OECC2023), OECC2023-0315-30315-3, 4th Jul. 2023
      Microoptics Conference (MOC)
    1. Haisong Jiang, Ryota Kuwahata, Junliang Guo, and Kiichi Hamamoto, “First Observation of Slow Light Effect in Nano-pixel Waveguide,” Technical digest of 28th Micro Optics Conference (MOC2023), PD-3, pp. 273-274, 28th Sep. 2023
    2. He Xiao, Yudai Kawano, Haisong Jiang, and Kiichi Hamamoto, “100 Gbps Direct Modulation Scheme by Utilizing Active-MMI Laser,” Technical digest of 28th Micro Optics Conference (MOC2023), PO-6, pp. 47-48, 26th Sep. 2023
    3. Ryoma Matsuo, Haisong Jiang, Younjin Kim, and Kiichi Hamamoto, “Experimental Demonstration of Vertical Field Tuning using Nano-Pixel Spot-Size Converter,” Technical digest of 28th Micro Optics Conference (MOC2023), PO-42, pp. 117-118, 26th Sep. 2023
    4. Yuzhuang Xie, Haisong Jiang, and Kiichi Hamamoto, “1 × 4 Nano-pixel Power Splitter Designed using Overlap-integral Method,” Technical digest of 28th Micro Optics Conference (MOC2023), PO-62, pp. 155-156, 26th Sep. 2023
    5. Sara Bruhier, Haisong Jiang, and Kiichi Hamamoto, “Nano-pixel Polarization Rotator for Photonic Integrated Breath Sensor,” Technical digest of 28th Micro Optics Conference (MOC2023), PO-64, pp. 159-160, 26th Sep. 2023
    6. Islam Mohammad Shafiqul, Haisong Jiang, Ryota Kuwahata, Zhonghao Zheng, and Kiichi Hamamoto, “90 ̊ nano-pixel bending waveguide toward highly compact reflecting element,” Technical digest of 28th Micro Optics Conference (MOC2023), PO-65, pp. 161-162, 26th Sep. 2023
    Conference Publications (Domestic)
      Institute of Electronics, Information and Communication Engineers (IEICE) Conference, March 2023
    1. He Xiao, Keiichiro Koutsu, Yudai Kawano, Haisong Jiang, and Kiichi Hamamoto“Photon-Photon-Resonance (PPR) control scheme by using active-MMI configuration,” IEICE General Conference 2023, Vol. 1, C-3/4-56, pp. 160, 10th Mar. 2023
    2. Keiichiro Koutsu, He Xiao, Yudai Kawano, Haisong Jiang, and Kiichi Hamamoto, “Fundamental Study on Vertical Diffraction Gratings Aimed at Application to Active MMI Lasers”IEICE General Conference 2023, Vol. 1, C-3/4-55, pp. 159, 10th Mar. 2023
    3. Noguchi Shunpei, Yoshida Riku, Kawasaki Yasunari, Haisong Jiang, and Kiichi Hamamoto, “Fundamental Study on a 1680nm Band Optical Amplifier for Integrated Optical Cavity Ring-Down”IEICE General Conference 2023, Vol. 1, C-3/4-8, pp. 112, 7th Mar. 2023
    4. Yamauchi Takeo, Shimamura Yuta, Yongjin Kim, Haisong Jiang, and Kiichi Hamamoto, “Study on Nano-pixel Polarization Rotator Using Circular Nano-holes”IEICE General Conference 2023, Vol. 1, C-5-8, pp. 172, 9th Mar. 2022.
      Japan Society of Applied Physics (JSAP) Meeting, March 2023
    1. Shimamura Yuta, Yamauchi Takeo, Yongjin Kim, Haisong Jiang, and Kiichi Hamamoto, “Study on the Design Method of 9:1 Asymmetric Power Splitter Using Nano-pixels”, Proceedings of the 70th Japan Society of Applied Physics Spring Meeting, 2023 , Vol. 3, 15a-A502-1, pp. 03-088, 15th Mar. 2023
    2. Yoshida Riku, Noguchi Shunpei, Kawasaki Yasunari, Haisong Jiang, and Kiichi Hamamoto, “Study on the Application of 1680 nm Band Optical Amplifiers for Acetone Detection” Proceedings of the 70th Japan Society of Applied Physics Spring Meeting, 2023 , Vol. 3, 17p-A502-16, pp. 03-484, 17th Mar. 2023
      Institute of Electronics, Information and Communication Engineers (IEICE) Meeting, September 2023
    1. Yudai Kawano, He Xiao, Haisong Jiang, and Kiichi Hamamoto, “Theoretical Study on the Reflective Properties of Vertical Diffraction Gratings” Proceedings of the 2023 IEICE Society Conference on Electronics, Vol. 1, C-3/4-18, pp. 89, 13th Sep. 2022
      Japan Society of Applied Physics (JSAP) Meeting, September 2023
    1. Haisong Jiang, Shimamura Yuta, Ryota Kuwabata, Matsuo Ryoma, and Kiichi Hamamoto “9:1 Asymmetric Power Splitter Using Nano-pixel Structure” Proceedings of the 84th Japan Society of Applied Physics Autumn Meeting, 2023 , Vol. 3, 20a-A201-1, pp. 03-011, 20th Sep. 2023
    2. Cangui Tang, Haisong Jiang, and Kiichi Hamamoto, “Mode-demultiplexer by using nano-pixel,”Proceedings of the 84th Japan Society of Applied Physics Autumn Meeting, 2023 , Vol. 3, 21p-P22-2, pp. 03-339, 21st Sep. 2023
      2023年10月OPE/LQE
    1. Haisong Jiang, Shimamura Yuta, Ryota Kuwabata, Matsuo Ryoma, and Kiichi Hamamoto “9:1 Asymmetric Power Splitter Using Nano-pixel Structure”IEICE Technical Report, OCS2023-33,OPE2023-88,LQE2023-35, Vol. 123, No. 221, pp. 32-36, 19th Oct. 2023
    2. Yudai Kawano, He Xiao, Haisong Jiang, and Kiichi Hamamoto, “ Study on Vertical Diffraction Gratings for Application to Active MMI Lasers,” IEICE Technical Report, OCS2023-41,OPE2023-96,LQE2023-43, Vol. 123, No. 221, pp.74-77, 20th Oct. 2023
    3. Sara Bruhier, Haisong Jiang, and Kiichi Hamamoto, “Photonics Circuit for Breath Sensing Integrated with Nano-pixel Polarization Rotator,” IEICE Technical Report, OCS2023-40,OPE2023-95,LQE2023-42, Vol. 123, No. 221, pp.68-73, 20th 2023
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2022

    Doctor Thesis
  1. Kazutoshi Hashimoto, Engineering Research on the Design of Optical Wave Control Circuits Using Waveguide Parameter Control Method and Wavefront Shaping Method, March 2021
    Journal Publications
  1. Keiichiro Shoda, Xiao He, Keiichiro Koutsu, Haisong Jiang, and Kiichi Hamamoto, “Equal input, compact optical power coupler based on a nano-pixel structure designed with machine learning,” Japanese Journal of Applied Physics, Vol. 61, No. SK1017, 21sr Jun. 2022, DOI 10.35848/1347-4065/ac678d
  2. Shun Matsubara, Tomoya Zennouji, Haisong Jiang, and Kiichi Hamamoto, “Rapid automatic waveguide recognition using YOLO and OpenCV for 3D waveguide fabrication,” Japanese Journal of Applied Physics, Vol. 61, No. SK1023, 5th Aug. 2022, DOI 10.35848/1347-4065/ac6e57
  3. Zhiyuan Fan, Yasuhiro Hinokuma, Haisong Jiang, and Kiichi Hamamoto, “Active multi-mode interferometer semiconductor optical amplifier on quantum dots toward high saturated output power under high temperature,” Japanese Journal of Applied Physics, Vol. 61, No. SK1019, 23rd Jun. 2022, DOI 10.35848/1347-4065/ac6a3e
  4. Yunjie Wang, Haisong Jiang, Kiichi Hamamoto, “Space-mode compressor by using nano-pixel,” Japanese Journal of Applied Physics, Vol. 61, No. SK1022, 19th Jul. 2022, DOI 10.35848/1347-4065/ac7b0e
    Conference Publications (International)
      Micro Optics Conference (MOC)
    1. Haisong Jiang, Yunjie Wang, and Kiichi Hamamoto, “Demonstration of space-mode “compressor” by using nano-pixel,” Tech. Dig. MOC2021, #1050, pp. 60-61, 28th Sep. 2022
    2. Yuta Shimamura, Ryota Kuwahata, Tetsuo Tabei, Haisong Jiang, and Kiichi Hamamoto, ”First Implementation of Asymmetric Power Splitter by using Nano –Pixel Integrated with Sensing High -Mesa Waveguide,” Tech. Dig. MOC2021, #1049, pp.41-42, 27th Sep. 2022
    3. He Xiao , Keiichiro koudu, Yudai Kawano, Haisong Jiang, and Kiichi Hamamoto, “Proposal of PPR frequency, width, and height control by using active-MMI laser diode,” Tech. Dig. MOC2021, #2007, pp. 76-77, 28th Sep. 2022
      Conference Publications (Domestic)
        IEICE Mar. 2022
      1. Keiichiro Shoda, He Xiao, Keiichiro Koutsu, Haisong Jiang, Kiichi Hamamoto, “Nano-pixel Structured 3-input In-phase Optical Combiner” General Conference of the Institute of Electronics, Information and Communication Engineers (IEICE)2022, Vol. 1, C-3/4-19, pp.107, 16th Mar. 2022.
      2. Shun Matsubara, Tomoya Zennoji, Haisong Jiang, Kiichi Hamamoto, “Waveguide Detection Using YOLO for 3D Waveguide Formation” General Conference of the Institute of Electronics, Information and Communication Engineers (IEICE)2022, Vol. 1, C-3/4-11, pp. 99, 16th Mar. 2022.
      3. Yasunari Kawasaki, Riku Yoshida, Haisong Jiang, Kiichi Hamamoto, “Fundamental Evaluation of Pump Laser Modulation for Dynamic Control of Optical Fiber Amplifiers” General Conference of the Institute of Electronics, Information and Communication Engineers (IEICE)2022, Vol. 1, C-3/4-15, pp. 103, 16th Mar. 2022
      4. Yunjie Wang, Haisong Jiang, Kiichi Hamamoto, “Proposal of Space-mode Compressor toward Compact MDM Devices,” General Conference of the Institute of Electronics, Information and Communication Engineers (IEICE)2022, Vol. 1, C-3/4-18, pp. 106, 16th Mar. 2022
      5. Zhiyuan Fan, Yasuhiro Hinokuma, Haisong Jiang and Kiichi Hamamoto, “Active-MMI SOA on Quantum-Dots toward High Saturation Output Power under High Temperature,” General Conference of the Institute of Electronics, Information and Communication Engineers (IEICE)2022, Vol. 1, C-3/4-26, pp. 114, 17th Mar. 2022
      6. He Xiao, Haisong Jiang, Kiichi Hamamoto, Keiichiro Shoda, Keiichiro Koudu, “Affection analysis of frequency response with photon-photon-resonance (PPR) to large signal modulated 40 Gbps signal,” General Conference of the Institute of Electronics, Information and Communication Engineers (IEICE)2022, Vol. 1, C-3/4-43, pp. 131, 18th Mar. 2022
        JSAP Mar. 2022
      1. Keiichiro Shoda, He Xiao, Keiichiro Koutsu, Haisong Jiang, Kiichi Hamamoto, “Fundamental Study on the Optical Transmittance of Nano-pixel Optical Combiners”, Proceedings of the 69th Japan Society of Applied Physics Spring Meeting, 2022, Vol. 3, 22a-D215-2, pp. 03-002, 22nd Mar. 2022
        IEICE Sep. 2022
      1. Keiichiro Koutsu, He Xiao, Yudai Kawano, Haisong Jiang, and Kiichi Hamamoto, “Fundamental investigation on vertical diffraction Bragg grating (DBR) for active-MMI laser diode,” Tech. Dig. IEICE Society Conf. 2022, Vol. 1, C-3/4-28, pp. 93, 8th Sep., 2022
      2. He Xiao, Keiichiro Koutsu, Yudai Kawano, Kiichi Hamamoto, and Haisong Jiang, “Affection analysis of frequency response with photon-photon-resonance (PPR) to large signal modulation (II),” Tech. Dig. IEICE Society Conf. 2022, Vol. 1, C-3/4-30, pp. 94, 8th Sep. 2022
        JSAP Sep. 2022
      1. Yuta Shimamura, Ryota Kuwahata,Tetsuo Tabei, Haisong Jiang, and Kiichi Hamamoto, “Formation of Si/SiO2 High-mesa Waveguides Integrated with Nano-pixel Structures” Proceedings of the 83rd Japan Society of Applied Physics Autumn Meeting, Vol. 3, 21a-A205-4, pp. 03-133, 21st Sep. 2022
        OPE/LQE Oct. 2022
      1. Yuta Shimamura, Ryota Kuwahata, Takeo Yamauchi, Yunjin Kim , Tetsuo Tabei, Haisong Jiang, and Kiichi Hamamoto, “Asymmetric Power Splitter Using Nano-pixel Structure Integrated with High-mesa Sensing Waveguide” IEICE Technical Report, OCS2022-24,OPE2022-70,LQE2022-33, Vol. 122, No. 217, pp. 40-44, 20th Oct. 2022
      2. Keiichiro Koutsu, He Xiao, Yudai Kawano, Haisong Jiang, and Kiichi Hamamoto, “Fundamental Study on Vertical Diffraction Gratings Aimed at Application to Active MMI Lasers” IEICE Technical Report, OCS2022-24, OCS2022-37,OPE2022-83,LQE2022-46, Vol. 122, No. 218, pp.104-109, 21st Oct. 2022
      3. He Xiao, Keiichirou Koutsu, Yudai Kawano, Haisong Jiang, and Kiichi Hamamoto, “Numerical analysis of Photon-photon-resonance in active-MMI laser diode based on rate equation,” IEICE Technical Report, OCS2022-38,OPE2022-84,LQE2022-47, Vol. 122, No. 218, pp.110-115, 21st Oct. 2022
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2021

    Doctor Thesis
  1. Zan Hui Chen, Engineering Nano air-hole waveguide for photonic integrated circuit, March 2021
  2. Yu Han, Engineering Low loss waveguide and AI-designed optical coupler for breath sensing, March 2021
    Award
  1. Zhiyuan Fan, Yasuhiro Hinokuma, Haisong Jiang, and Kiichi Hamamoto, "Active-MMI SOA on quantum-dots toward high saturation output power under high temperature," Tech. Dig. Micro Optics Conference (MOC) 2021,F-3,pp. 76-77, 28th Sep. 2021
    Journal Publications
  1. Haisong Jiang, Yasuhiro Hinokuma, Sampad Ghosh, Ryota Kuwahata, and Kiichi Hamamoto, "Concept demonstration of 3D waveguides shuffle converter for multi-core fiber/single-mode fiber fan-in fan-out configuration toward over 1,000 port count," IEICE Transactions on Electronics, Vol. E104-C, No. 1, pp.34-36, January 2021
  2. Zan Hui Chen, Wenying Li, Yu Han, Leiyun Wang, Haisong Jiang, and Kiichi Hamamoto, “Vertical field enhancement of spot size converter with nano-pixels waveguide and window structure,” Optics Express, Vol. 29, Issue 2, pp. 2757-2768, Jan. 2021
  3. Yu Han, Zanhui Chen, Leiyun Wang, Wenying Li, Haisong Jiang, and Kiichi Hamamoto, “Asymmetric-ration optical power couplers based on nano-pixel structure,” OSA Continum, Vol. 4, No. 2, pp. 556-568, Feb. 2021
  4. Haisong Jiang, Mahmoud Nasef and Kiichi Hamamoto, "Spatial single dimensional mode based de-multiplexer using slab waveguide," IEICE TRANSACTIONS on Electronics, Vol.E104-C, No.5, pp. 164-167, May 2021
  5. 浜本貴一, 姜海松, "Beyond 5G/6Gとナノフォトニクス技術の現状と将来," 光学技術コンタクト, Vol.59, No.7, pp.28-35, July 2021
    Conference Publications (International)
      Micro Optics Conference (MOC)
    1. Zhiyuan Fan, Yasuhiro Hinokuma, Haisong Jiang and Kiichi Hamamoto, "Active-MMI SOA on quantum-dots toward high saturation output power under high temperature," Tech. Dig. MOC2021, F-3, pp.76-77, 28th Sep. 2021
    2. Keiichiro Shoda, Xiao He, Keiichiro Kozu, Haisong Jiang and Kiichi Hamamoto, "Demonstration of equal input (intensity and phase) MMI like power coupler by using nano-pixel structure," Tech. Dig. MOC, PO-41, pp.224-225, 28th Sep.2021
    3. Yunjie Wang, Haisong Jiang, and Kiichi Hamamoto, "Proposal of space-mode "compressor" by using nano-pixel," Tech. Dig. MOC, PO-61, pp.264-265, 28th Sep. 2021
    4. He Xiao, Keiichiro Shoda, Keiichiro Koudu, Haisong Jiang, and Kiichi Hamamoto, "Affection analysis of frequency response with photon-photon-resonance (PPR) to directly modulated 40Gbps signal," Tech. Dig. MOC2021, PO-65, pp.272-273, 28th Sep.2021
    5. Shun Matsubara, Tomoya Zennouji, Haisong Jiang and Kiichi Hamamoto, "Rapid automatic waveguide recognition using YOLO for 3D waveguide drawing," Tech. Dig. MOC2021, PD-2, pp.280-281, 29th Sep.2021
      International Semiconductor Laser Conference (ISLC)
    1. Zhiyuan Fan, Yasuhiro Hinokuma, Haisong Jiang and Kiichi Hamamoto, "ASE spectrum analysis on active-MMI SOA toward high saturation output power at high temperature," Proc. 27th IEEE ISLC WP1.17, pp.76-77, 28th Sep.2021
      EXAT International Symposium
    1. Shun Matsubara, Tomoya Zennouji, Haisong Jiang and Kiichi Hamamoto, "Rapid waveguide recognition toward MCF/optical-mode-switch 3D direct coupling," EXAT 2021, P-13, 4th Nov.2021
    2. Yunjie Wang, Haisong Jiang and kiichi Hamamoto, "Proposal of Space-mode Compressor toward Compact MDM Devices," EXAT 2021, P-18, 4th Nov.2021
    Conference Publications (Domestic)
      IEICE Mar. 2021
    1. He Xiao, Keiichiro Shoda, Takaya Nagano, Jiang Haisong, and Kiichi Hamamoto, “Proposal of photon-photon resonance control scheme on active-MMI laser diode,” Tech. Dig. IEICE General Conf. 2021, C-3/4-4, pp. 82, 9th Mar. 2021
    2. Zan Hui Chen, Wenying Li, Yu Han, Leiyun Wang, Haisong Jiang and Kiichi Hamamoto, “Improved coupling efficiency of spot-size converter with nano-pixels structure by using deep neural network,” Tech. Dig. IEICE General Conf. 2021, Vol. 1, C-3/4-28, pp. 106, 12th Mar. 2021
    3. Yu Han, Zanhui Chen, Leiyun Wang, Haisong Jiang and Kiichi Hamamoto, “TE to TM polarization rotator based on nano-pixel waveguide,” Tech. Dig. IEICE General Conf. 2021, Vol. 1, C-3/4-35, pp. 113, 12th Mar. 2021
    4. Shun Matsubara, Keisuke Iwasaki, Haisong Jiang, and Kiichi Hamamoto, “Preliminary study of 3 dimensional waveguide fabrication using mosquito method toward multi-core fiber direct coupling,” Tech. Dig. IEICE General Conf. 2021, Vol. 1, B-10-41, pp. 199, 10th Mar. 2021
      IEICE Sep. 2021
    1. Keiichiro Shoda, Yunjie Wang, He Xiao, Keiichiro Kozu, Jiang Haisong, and Kiichi Hamamoto, “Fundamental study of nano-pixel waveguide design using machine learning (Ⅰ),” Tech. Dig. IEICE Society Conf., Electron., Vol. 1, C-3/4-1, pp. 79, 14th Sep, 2021
    2. Yunjie Wang, Keiichiro Shoda, He Xiao, Keiichiro Kozu, Haisong Jiang, and Kiichi Hamamoto, “Fundamental study of nano-pixel waveguide design using machine learning (Ⅱ),” Tech. Dig. IEICE Society Conf., Electron., Vol. 1, C-3/4-2, pp. 80, 14th Sep, 2021
    3. Shun Matsubara, Tomoya Zennouji, Haisong Jiang, and Kiichi Hamamoto, “Fundamental study toward direct coupling between MCF and optical mode switch (2) -Automatic waveguide recognition trial-,” Tech. Dig. IEICE Society Conf., Electron., Vol. 1, C-3/4-45, pp. 123, 15th Sep, 2021
    講演
  1. Kiichi Hamamoto, “Open up The Future by Using Opto-Electronics”, Seminar Talk at National Taiwan Science and Technology Univ. (Taipei, Taiwan), 18th October 2021
  2. 姜　海松、浜本　貴一、“フレキシブルモード多重ネットワーク実現を目指した空間単一次元光モードスイッチ”、 EXAT研究会（2021年8月）, 26th August 2021
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    2020
      Doctor Thesis
    1. Wenying Li, Engineering Amplifier-assisted cavity ring-down spectroscopy using optical waveguide, August 2020
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      Award
    1. 2019年 IEEE福岡支部 発表奨励賞 Mahmoud Mohamed Nasef, “Propagation Mode Retention at Fiber Bending Region Using Strongly Coupled Multi-Core Fiber”, International Session on Computer Science and Information Technologies in the 72nd Joint Conference of Electrical, Electronics and Information Engineers in Kyushu, 07-2A-02
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      Journal Publications
    1. Yu Han, Wenying Li, Zanhui Chen, Haisong Jiang, and Kiichi Hamamoto, “Fabrication and analysis of low-loss silicon high-mesa waveguides,” Applied Optics, Vol. 59, No. 16, pp. 4964-4969, June 2020 査読
    2. Wenying Li, Yu Han, Zanhui Chen, Leiyun Wang, Haisong Jiang, and Kiichi Hamamoto, “Amplifier-assisted waveguide sensing toward breath-gas analysis,” Engineering Sciences Reports, Kyushu University, Vol. 42, No. 1, pp. 19-26, September 2020
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      Conference Publications (International)
    1. Wenying Li, Yu Han, Zanhui Chen, Leiyun Wang, Haisong Jiang and Kiichi Hamamoto, “Integrated optical waveguide gas sensing using amplifier assisted technique,” Tech. Dig. Optical Sensors and Sensing Congress, STh4G.3, 25th June 2020
    2. Leiyun Wang, Wenying Li, Yu Han, Zanhui Chen, Haisong Jiang and Kiichi Hamamoto, “Sensing accuracy improvement for waveguide CRDS toward compact breath,” Tech. Dig. Optoelectronics Communication Conference, T7-1.4, 7th October 2020
    3. Zan Hui Chen, Wenying Li, Yu Han, Haisong Jiang and Kiichi Hamamoto, “Vertical field enhancement of spot size converter by using nano-pixel waveguide and window structure,” Tech. Dig. Optoelectronics Communication Conference, VP93, 7th October 2020
    4. Jin Zhang, Haisong Jiang and Kiichi Hamamoto “Feasibility study of 1×4 optical mode switch based on single dimensional mode-set,” Tech. Dig. Optoelectronics Communication Conference, VP101, 7th October 2020
    5. Yu Han, Zanhui Chen, Wenying Li, Haisong Jiang and Kiichi Hamamoto, “1:9 and 1:99 optical power couplers based on nano-pixel structure,” Tech. Dig. Optoelectronics Communication Conference, T6-2.5, 8th October 2020
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      Conference Publications (Domestic)
    1. ZanHui Chen, Wenying Li, Haisong Jiang and Kiichi Hamamoto, “Simultaneous optimization of the lateral and vertical spot size converter by using different dot density nano-pixel,” 電子情報通信学会総合大会論文集2020, Vol. 1, C-3/4-14, 18th Mar. 2020
    2. Leiyun Wang, Wenying Li, Yu Han, Zanhui Chen, Haisong Jiang and Kiichi Hamamoto, “Integrated optical waveguide gas sensing using amplifier-assisted technique,” 電子情報通信学会総合大会2020, Vol. 1, C-3/4-55, 20th Mar. 2020
    3. Yinglei Qu, Ryota Kuwahata, Haisong Jiang and Kiichi Hamamoto, “Fundamental study of saturation output power on quantum dot semiconductor optical amplifier (SOA) under high temperature(85° C),” 電子情報通信学会総合大会2020, Vol. 1, C-3/4-35, 18th Mar. 2020
    4. Zan Hui Chen, Wenying Li, Yu Han, Leiyun Wang, Haisong Jiang and Kiichi Hamamoto, “Vertical field enhancement of spot size converter by using nano-pixel waveguide and window structure,” 2020年第81回応用物理学会秋季学術講演会論文集, Vol. 3, 8a-Z16-7, pp. 03-43, 8th Sep. 2020
    5. Jin Zhang, Haisong Jiang and Kiichi Hamamoto, “Feasibility study of 1×4 optical mode switch based on single dimensional mode-set,” 2020年第81回応用物理学会秋季学術講演会論文集, Vol. 3, 8a-Z16-4, pp. 03-39, 8th Sep. 2020
    6. Leiyun Wang, Wenying Li, Yu Han, Zanhui Chen, Haisong Jiang and Kiichi Hamamoto, “Accuracy improvement for waveguide CRDS toward compact breath sensing,” 2020年第81回応用物理学会秋季学術講演会論文集, Vol. 3, 8p-Z19-20, pp. 03-091, 8th Sep. 2020
    7. Yu Han, Zanhui Chen, Wenying Li, Haisong Jiang and Kiichi Hamamoto, “Asymmetric-ration optical power couplers based on nano-pixel structure,” 2020年第81回応用物理学会秋季学術講演会論文集, Vol. 3, 9p-Z19-4, pp. 03-184, 9th Sep. 2020
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    2019
      Doctor Thesis
    1. Bingzhou Hong, PhD、High direct modulation speed with space mode selectivity by using active multimode interferometer laser diode, February 2019
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      Award
    1. Best Poster Presentation, Photonic Device Workshop 2019 Wenying Li, Yu Han, Zanhui Chen, Haisong Jiang, and Kiichi Hamamoto, “Compact breath sensing using amplifier assisted CRDS (cavity ring-down spectroscopy),” Technical Digest of Photonic Device Workshop, P-09, 5th Dec. 2019
    2. Certificate of commendation, LQE, 1st February 2019 Kiichi Hamamoto To a two year’s contribution to LQE as a vice-chair and a chair
    3. The Fellow of OSA, 5th March 2019 Kiichi Hamamoto In recognition of distinguished device in the advancement of optics
    4. The MOC Contribution Award, 18th November 2019 Kiichi Hamamoto For the significant contribution to the successful holdings of Microoptics Conferences, especially, the great successes of ECIO-MOC 2014 (Nice, France), MOC’15 (Fukuoka, Japan), and MOC2018 (Taipei, Taiwan)
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      Journal Publications
    1. Kiichi Hamamoto, and Haisong Jiang, “Mode Selective Active Multimode Interferometer Laser Diode —Mode Selection Principle, and High Speed Modulation-,” IEICE Trans. Electron., Vol. E102-C, No. 4, pp. 364-370, April 2019
    2. Satoshi Ogawa, Ahmad Syahrin Idris, Yu Han, Haisong Jiang and Kiichi Hamamoto, “Surface Improvement Investigation of Sol-Gel SiO2 Cladding for Waveguide Device Passivation,” Japanese Journal of Applied Physics, Vol. 58, SJJB04, July 2019
    3. Wenying Li, Yu Han, Zanhui Chen, Haisong Jiang, and Kiichi Hamamoto, “Amplifier-assisted CRDS (cavity ring-down spectroscopy) toward compact breath sensing,” Japanese Journal of Applied Physics, Vol. 58, SJJD01, July 2019
    4. Zan Hui Chen, Wenyin Li, Yu Han, Haisong Jiang, and Kiichi Hamamoto, “Proposal of two tangent air hole structure for Higher Sensitivity Gas Sensor,” Japanese Journal of Applied Physics, Vol. 58, SJJD03, July 2019
    5. Bingzhou Hong, Tomotaka Mori, Shingo Murakami, Haisong Jiang, and Kiichi Hamamoto, “A space mode selective light source with over 40 GHz direct modulation bandwidth,” Japanese Journal of Applied Physics, Vol. 58, SJJA05, July 2019
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      Conference Publications (International)
    1. Kiichi Hamamoto, “Active-MMI laser diodes and optical mode switches - Toward high speed interconnection and flexible mode-division multiplexing network -,” Technical Digest of 9th International Symposium on Ultrafast Photonic Technologies (ISUPT) and the Special Symposium on Silicon Photonics of the Future (SSPhF), MW15-6, 17th June 2019
    2. Satoshi Ogawa, Haisong Jiang, and Kiichi Hamamoto, “Proposal of 1×N Optical Mode Switch Based on Spatial Single Dimensional Mode,” Tech. Dig. Optoelectronics Communication Conference / Photonics in Switching and Computing, TuP4-E7, 9th July 2019
    3. Haisong Jiang, Mahmoud Nasef, Kantaro Fujimoto, and Kiichi Hamamoto, “Spatial Single Dimensional Mode De-multiplexer Based on Rowland Circle Waveguide,” Tech. Dig. Optoelectronics Communication Conference / Photonics in Switching and Computing, TuP4-E8, 9th July 2019
    4. Yu Han, Wenying Li, Haisong Jiang, and Kiichi Hamamoto, “Significant Propagation Loss Reduction on Silicon High-Mesa Waveguides Using Thermal Oxidation Technique,” Tech. Dig. Optoelectronics Communication Conference / Photonics in Switching and Computing, WP4-E1, 10th July 2019
    5. Shingo Murakami, Tomotaka Mori, Bingzhou Hong, Haisong Jiang, and Kiichi Hamamoto, “Mode Crosstalk Improvement of Active-MMI Mode Selective Laser Diode using Slit Structure,” Tech. Dig. Optoelectronics Communication Conference / Photonics in Switching and Computing, ThF1-4, 11th July 2019
    6. Mahmoud Nasef, Kantaro Fujimoto, Haisong Jiang, Kiichi Hamamoto, “Propagation Mode Retention Using Strongly Coupled Multi-Core Fiber,” Tech. Dig. Optoelectronics Communication Conference / Photonics in Switching and Computing, ThG3-4, 11th July 2019
    7. Mahmoud Nasef, Fujimoto Kantaro, Haisong Jiang, and Kiichi Hamamoto, “Propagation Mode Retention Using Strongly Coupled Multi-Core Fiber,” Proceedings of The International Symposium on Extremely Advanced Transmission Technology (EXAT 2019, Ise, Japan), P15, 30th May 2019
    8. Haisong Jiang, Mahmoud Nasef, Fujimoto Kantaro, and Kiichi Hamamoto, Spatial Single Dimensional Mode De-multiplexer Based on Rowland Circle Waveguide,” Proceedings of The International Symposium on Extremely Advanced Transmission Technology (EXAT 2019, Ise, Japan), P17, 30th May 2019
    9. Mahmoud Nasef, Kantaro Fujimoto, Haisong Jiang, Kiichi Hamamoto, “Propagation Mode Retention Using Strongly Coupled Multi-Core Fiber,” IEICES Technical Report, P-08, 25 Oct 2019
    10. Satoshi Ogawa, Haisong Jiang, and Kiichi Hamamoto, “Proposal of 1×N Optical Mode Switch Based on Spatial Single Dimensional Mode,” IEICES Technical Report, Session 8-3, 25th Oct. 2019
    11. Shingo murakami, Bingzhou Hong, Haisong Jiang and Kiichi Hamamoto, “Observation of 60 GHz and 20 GHz Multiple Photon-Photon Resonances Using Active Multimode Interferometer Laser Diodes,” IEICES Technical Report, Session 8-4, 25 Oct 2019
    12. Yu Han, Wenying Li, Haisong Jiang, and Kiichi Hamamoto, “Significant Propagation Loss Reduction on Silicon High-Mesa Waveguides Using Thermal Oxidation Technique”, IEICES Technical Report, Session 8-1, 25 Oct 2019.
    13. Zan Hui Chen, Wenying Li, Haisong Jiang, and Kiichi Hamamoto, “Compact and Highly Sensitive Methane Sensor Based on Two Tangent Air Hole Structure”, IEICES Technical Report, Session 8-2, 25 Oct 2019.
    14. Wenying Li, Yu Han, Zanhui Chen, Haisong Jiang, and Kiichi Hamamoto, “Compact Breath Sensing using Amplifier Assisted CRDS (Cavity Ring-down Spectroscopy)”, IEICES Technical Report, Session 8-4, 25 Oct 2019.
    15. Kiichi Hamamoto, “Active-MMI laser diodes and optical mode switches - Toward high speed interconnection and flexible mode-division multiplexing network -,” Technical Digest of Si and Photonic Integration Workshop, Plenary 3, 17th October 2019
    16. Kiichi Hamamoto, “Active-MMI laser diodes and optical mode switches - Toward high speed interconnection and flexible mode-division multiplexing network -,” Technical Digest of International Workshop of Optical Signal Processing and Optical Switching, Keynote-1, 30th October 2019
    17. Shingo murakami, Bingzhou Hong, Haisong Jiang and Kiichi Hamamoto, “Observation of 60 GHz and 20 GHz Multiple Photon-Photon Resonances Using Active Multimode Interferometer Laser Diodes,” Tech. Dig. MOC, G4, pp. 304-305, 20th Nov. 2019
    18. Ryota Kuwahata, Haisong Jiang and Kiichi Hamamoto, “Fundamental Study of Saturation Output Power on Quantum Dot Semiconductor Optical Amplifier (SOA) under High Temperature (85 oC),” Tech. Dig. MOC, P42, pp. 180-181, 18th Nov. 2019
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      Conference Publications (Domestic)
    1. Haisong Jiang、Mahmoud Nasef、Kantaro Fujimoto、Kiichi Hamamoto, “スラブ導波路を用いた位相制御型単一次元空間モード合分波器”, 電子情報通信学会技術研究報告（大阪大学中之島センター、大阪）, Vol. 118, No. 399, LQE2018-171, pp. 123-126, 17th Jan. 2019
    2. Satoshi Ogawa, Ahmad Syahrin Idris, Yu Han, Haisong Jiang, Kiichi Hamamoto, “光導波路のパッシベーションのためのゾルゲルSiO2層表面の改善検討,” 電子情報通信学会技術研究報告（大阪大学中之島センター、大阪）, Vol. 118, No. 399, LQE2018-172, pp. 127-130, 17th Jan. 2019
    3. Wenying Li, Yu Han, Zanhui Chen, Haisong Jiang, Kiichi Hamamoto,“光増幅器を用いたCRDS法の小型呼気センシング感度向上に関する検討,” 電子情報通信学会技術研究報告（大阪大学中之島センター、大阪）, Vol. 118, No. 399, LQE2018-197, pp. 251-254, 18th Jan. 2019
    4. Bingzhou Hong, Tomotaka Mori, Haisong Jiang, and Kiichi Hamamoto, “Mode Crosstalk Evaluation in Mode Selective Active Multimode Interferometer Laser Diode Based on Wavelength Spectrum Analysis Method Mode,” 2019年第66回応用物理学会春季学術講演会論文集 , Vol. 3, 9a-W331-4, pp. 03-141, 9th Mar. 2019
    5. Zan Hui Chen, Wenying Li, Yu Han, Haisong Jiang, and Kiichi Hamamoto, “Proposal of Two Tangent Hole Structure for Higher Sensitivity Gas Sensor”, 2019年第66回応用物理学会春季学術講演会論文集 , Vol. 3, 11a-W935-4, pp. 03-381, 11th Mar. 2019
    6. Wenying Li, Yu Han, Zanhui Chen, Haisong Jiang, and Kiichi Hamamoto “Amplifier Assisted CRDS (Cavity Ring down Spectroscopy) toward Compact Breath Sensing”, 2019年第66回応用物理学会春季学術講演会論文集 , Vol. 3, 11a-W935-5, pp. 03-382, 11th Mar. 2019
    7. Tomotaka Mori, Bingzhou Hong, Shingo Murakami, Haisong Jiang, Kiichi Hamamoto, “スリット構造導入によるアクティブMMIレーザ型モード選択光源のモード間クロストーク抑制”, 2019年第66回応用物理学会春季学術講演会論文集 , Vol. 3, 12a-W611-7, pp. 03-599, 12th Mar. 2019
    8. Kantaro Fujimoto、Haisong Jiang、Kiichi Hamamoto、“強結合光導波路構造による高次モード励起抑制効果に関する基礎検討,” 2019年第66回応用物理学会春季学術講演会論文集 , Vol. 3, 12p-W611-11, pp. 03-656, 12th Mar. 2019
    9. Haisong Jiang、Mahmoud Nasef、Kantaro Fujimoto、Kiichi Hamamoto,“スラブ導波路を用いた位相制御型単一次元空間モード合分波器,” 2019年第66回応用物理学会春季学術講演会論文集 , Vol. 3, 12p-M116-6, pp. 03-637, 12th Mar. 2019
    10. Satoshi Ogawa, Haisong Jiang, Kiichi Hamamoto, “空間1次元モード型N×N光モードスイッチ構造の提案,” 電子情報通信学会総合大会論文集2019, Vol. 1, C-3-5, pp. 116, 19th Mar. 2019
    11. Yu Han, Wenying Li, Haisong Jiang and Kiichi Hamamoto, “ Proposal of Thin Silicon Core High-Mesa Waveguide for Breath Sensors,” 電子情報通信学会総合大会2019, Vol. 1, C-3-36, pp. 147, 22th Mar. 2019
    12. Yu Han, Wenying Li, Haisong Jiang, and Kiichi Hamamoto, “Significant Propagation Loss Reduction on Silicon High-Mesa Waveguides Using Thermal Oxidation Technique,” Tech. Dig. IEICE, C-3-31, 12th Sep. 2019
    13. Shingo murakami, Bingzhou Hong, Haisong Jiang and Kiichi Hamamoto, “Observation of 60 GHz and 20 GHz Multiple Photon-Photon Resonances Using Active Multimode Interferometer Laser Diodes,” Tech. Dig. IEICE, C-3-11, 10th Sep. 2019
    14. Mahmoud Nasef, Kantaro Fujimoto, Haisong Jiang, and Kiichi Hamamoto, “Propagation Mode Retention at Fiber Bending Region Using Strongly Coupled Multi-Core Fiber”, Tech. Dig. IEICE, B-13-5, 11th Sep. 2019
    15. Haisong Jiang, Mahmoud Nasef, Kantaro Fujimoto, and Kiichi Hamamoto, “Spatial Single Dimensional Mode Demultiplexer Based on Slab Waveguide,” Tech. Dig. IEICE, C-3-53, 13th Sep. 2019
    16. Yu Han, Wenying Li, Haisong Jiang and Kiichi Hamamoto, “Significant Propagation Loss Reduction on Silicon High-Mesa Waveguides Using Thermal Oxidation Technique,” Tech. Dig. JCEEE, 07-2A-01, pp. 373, 28th Sep. 2019
    17. Mahmoud Mohamed Nasef, Kantaro Fijumoto, Haisong Jiang and Kiichi Hamamoto, “Propagation Mode Retention at Fiber Bending Region Using Strongly Coupled Multi-Core Fiber,” Tech. Dig. JCEEE, 07-2A-02, pp. 374, 28th Sep. 2019
    18. Satoshi Ogawa, Haisong Jiang, and Kiichi Hamamoto, “Proposal of 1×N Optical Mode Switch Based on Spatial Single Dimensional Mode,” Tech. Dig. JCEEE, 07-2A-03, pp. 375, 28th Sep. 2019
    19. Shingo murakami, Bingzhou Hong, Haisong Jiang and Kiichi Hamamoto, “Observation of 60 GHz and 20 GHz Multiple Photon-Photon Resonances Using Active Multimode Interferometer Laser Diodes,” Tech. Dig. JCEEE, 07-2A-04, pp. 376, 28th Sep. 2019
    20. Yu Han, Wenying Li, Haisong Jiang, and Kiichi Hamamoto, “Significant Propagation Loss Reduction on Silicon High-Mesa Waveguides Using Thermal Oxidation Technique,” IEICE Technical Report, LQE2019-45, Vol. 119, No. 231, pp. 11-14, 17th Oct. 2019
    21. Zan Hui Chen, Wenying Li, Yu Han, Haisong Jiang and Kiichi Hamamoto, “Proposal of Two Tangent Hole Structure for Higher Sensitivity Gas Sensor,” IEICE Technical Report, OPE2019-68, Vol. 119, No. 231, pp. 22-25, 17th Oct.. 2019
    22. Satoshi Ogawa, Haisong Jiang, and Kiichi Hamamoto, “Proposal of the 1xN optical mode switch based on the spatial single dimensional mode,” IEICE Technical Report, OPE2019-84, Vol. 119, No. 231, pp. 99-104, 18th Oct. 2019
    23. Mahmoud Nasef, Kantaro Fujimoto, Haisong Jiang and Kiichi Hamamoto, “Propagation Mode Retention at Fiber Bending Region Using Strongly Coupled Multi-Core Fiber,” IEICE Technical Report, OPE2019-88, Vol. 119, No. 231, pp. 119-124, 18th Oct. 2019
    24. Wenying Li, Yu Han, Zanhui Chen, Haisong Jiang, and Kiichi Hamamoto, “Compact breath sensing using amplifier assisted CRDS (cavity ring-down spectroscopy),” Technical Digest of Photonic Device Workshop, P-09, 5th Dec. 2019
    25. Satoshi Ogawa, Haisong Jiang, and Kiichi Hamamoto, “Proposal of the 1×N Optical Mode Switch Based on the Spatial Single Dimensional Mode,” Technical Digest of Photonic Device Workshop, P-14, 5th Dec. 2019
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      Seminar
    1. Kiichi Hamamoto, “モード学としての発展に向けて－新たなモード基底、新たな展開－,” 東北大通研共同研究プログラム, 22nd February 2019
    2. Kiichi Hamamoto, “Open up The Future by Using Opto-Electronics”, Seminar Talk at Finisar Corporation (San Jose, USA), 14th June 2019
    3. Kiichi Hamamoto, “Open up The Future by Using Opto-Electronics”, Seminar Talk at Tianjin Univ. (Tianjin, China), 9th October 2019
    4. Kiichi Hamamoto, “Open up The Future by Using Opto-Electronics”, Seminar Talk at National Taiwan Science and Technology Univ. (Taipei, Taiwan), 18th October 2019
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    2018
      Doctor Thesis
    1. Ryan Imansyah、High-speed optical mode switch using refractive index change based on current injection、August 2018
    2. Ahmad Syahrin Idris、Fundamental research on waveguide fabrication for future photonic circuits、September 2018
    3. Bingzhou Hong、High direct modulation speed with space mode selectivity by using active multimode interferometer laser diode、February 2019
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      Journal Publications
    1. Ahmad Syahrin Idris, Haisong Jiang, and Kiichi Hamamoto, “Multi-layer stacking scheme of sol-gel based SiO2 towards thicker (>0.8 µm) cladding layers for optical waveguides,” IEICE Electronics Express, Vol. 15, No. 19, pp. 1-12, October 2018, 査読有
    2. Kiichi Hamamoto, and Haisong Jiang, "Active-MMI laser diode toward high-speed direct modulation based on multiple photon-photon resonance," Proc. SPIE 10682, Semiconductor Lasers and Laser Dynamics VIII, 106820X; doi:10.1117/12.2306018, 9 May 2018, 査読有
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      Conference Publications (International)
    1. Bingzhou Hong*, Tomotaka Mori, Haisong Jiang, and Kiichi Hamamoto, “Mode Crosstalk Evaluation of Mode Selective Active Multimode Interferometer Laser Diode Based on Wavelength Spectrum Analysis Method,” Technical digest of 23rd Micro Optics Conference (MOC2018, Taipei, Taiwan), Technical digest of 23rd Micro Optics Conference (MOC2018, Taipei, Taiwan), F-6, 17th October 2018
    2. Ahmad Syahrin Idris, Satoshi Ogawa, Haisong Jiang and Kiichi Hamamoto, “Thick (>0.8 µm) Cladding and Passivation Layers for Optical Waveguide by Using Sol-gel SiO2 Multi-step Stacking Method,” Technical digest of 23rd Micro Optics Conference (MOC2018, Taipei, Taiwan), B-3, 16th October 2018
    3. Satoshi Ogawa, Ahmad Syahrin Idris, Yu Han, Haisong Jiang and Kiichi Hamamoto, “Surface Improvement Investigation of Sol-Gel SiO2 Cladding for Waveguide Device Passivation,” Technical digest of 23rd Micro Optics Conference (MOC2018, Taipei, Taiwan), P-56, 16th October 2018
    4. Wenying Li, Yu Han, Zanhui Chen, Haisong Jiang, and Kiichi Hamamoto “Amplifier Assisted CRDS (Cavity Ring-down Spectroscopy) toward Compact Breath Sensing”, Technical digest of 23rd Micro Optics Conference (MOC2018, Taipei, Taiwan), P-85, 16th October 2018
    5. Zan Hui Chen, Haisong Jiang, Wenying Li, Yu Han, Bingzhou Hong and Kiichi Hamamoto, “Proposal of Two Tangent Hole Structure for Higher CO2 Sensing Compared to Conventional PhC Cavity”, Technical digest of 23rd Micro Optics Conference (MOC2018, Taipei, Taiwan), P-90, 16th October 2018
    6. Kiichi Hamamoto, Yasuhiro Hinokuma, Sampad Ghosh, Ryota Kuwahata, and Haisong Jiang, “Shuffle Converter using 3D Waveguides for MCF/SMF Fan-in Fan-out Configuration toward over 1,000 Port Count Optical Matrix Switch,” Proceedings of 23rd Optoelectronics and Communication Conference, 5E2-4, 5th July 2018, 査読有
    7. Bingzhou Hong, Tomotaka Mori, Haisong Jiang, and Kiichi Hamamoto, “Mode Selective Active Multimode Interferometer Laser Diode with over 40 GHz Direct Modulation Bandwidth,” Technical Digest of Optical Fiber Communication Conference (OFC 2018, San Diego), Th3B.4, 18 Mar 2018, 査読有
    8. Kiichi Hamamoto and Haisong Jiang,“Active-MMI laser diode toward highspeed direct modulation based on multiple photon-photon resonance”, Proc. SPIE 10682, Semiconductor Lasers and Laser Dynamics VIII, 106820X (9 May 2018); doi:10.1117/12.2306018, 2018, 招待講演
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      Conference Publications (Domestic)
    1. Haisong Jiang、Mahmoud Nasef、Kantaro Fujimoto、Kiichi Hamamoto, “位相制御型単一次元空間モード合分波器の予備検討”,　電子情報通信学会ソサイエティ大会論文集2018、Vol. 1, C-3-21, pp. 111, 11st Sep. 2018
    2. Bingzhou Hong, Tomotaka Mori, Haisong Jiang, and Kiichi Hamamoto, “Mode Selective Active Multimode Interferometer Laser Diode with over 40 GHz Direct Modulation Bandwidth”, 電子情報通信学会ソサイエティ大会論文集2018、Vol. 1, C-4-13, pp. 169, 12th Sep. 2018.
    3. Kantaro Fujimoto、Haisong Jiang、Kiichi Hamamoto, “Fundamental investigation of mode maintaining slit　waveguide,” 平成30年度（第71回）電気・情報関係学会九州支部連合大会, 12-2A-06, pp. 400, 28th Sep. 2018
    4. Mahmoud Nasef, Kantaro Fujimoto, Haisong Jiang, Kiichi Hamamoto, “Preliminary Research on Spatial Single Dimensional Modes Demultiplexer by Adjusting Phase Wavefronts,” 平成30年度（第71回）電気・情報関係学会九州支部連合大会, 12-2A-07, pp. 401, 28th Sep. 2018.
    5. Satoshi Ogawa, Ahmad Syahrin Idris, Yu Han, Haisong Jiang and Kiichi Hamamoto, “Surface Improvement Investigation of Sol-Gel SiO2 Cladding for Waveguide Device Passivation,” 平成30年度（第71回）電気・情報関係学会九州支部連合大会, 12-2A-08, pp. 402, 28th Sep. 2018
    6. Wenying Li, Yu Han, Zanhui Chen, Haisong Jiang, Kiichi Hamamoto, “Amplifier Assisted CRDS (Cavity Ring-down Spectroscopy) toward Compact Breath Sensing,” 平成30年度（第71回）電気・情報関係学会九州支部連合大会, 12-2A-09, pp. 403, 28th Sep. 2018.
    7. Kantaro Fujimoto、Kiichi Hamamoto、Haisong Jiang、“強結合光導波路構造による高次モード励起抑制効果に関する基礎検討,” 電子情報通信学会技術研究報告（佐賀県教育会館、佐賀）Vol. 118, No. 253, LQE2018-66, pp. 71-74, 19th Oct. 2018
    8. Tomotaka Mori、Bingzhou Hong、Haisong Jiang、Kiichi Hamamoto,　“アクティブMMIレーザ型モード選択光源のモード間クロストーク評価方法の検討,” 電子情報通信学会技術研究報告（佐賀県教育会館、佐賀）, Vol. 118, No. 253, LQE2018-68, pp. 81-86,, 19th Oct. 2018
    9. Yu Han、Wenying Li、Haisong Jiang、Kiichi Hamamoto, “Thin Core (100nm) Silicon High-mesa Waveguide for High Quality Breath Sensors,” 電子情報通信学会技術研究報告（佐賀県教育会館、佐賀）, Vol. 118, No. 253, LQE2018-69, pp. 87-92, 19th Oct. 2018
    10. Haisong Jiang、Mahmoud Nasef、Kantaro Fujimoto、Kiichi Hamamoto, “スラブ導波路を用いた位相制御型単一次元空間モード合分波器”, 電子情報通信学会技術研究報告（大阪大学中之島センター、大阪）, Vol. 118, No. 399, LQE2018-171, pp. 123-126, 17th Jan. 2019
    11. Satoshi Ogawa, Ahmad Syahrin Idris, Yu Han, Haisong Jiang, Kiichi Hamamoto, “光導波路のパッシベーションのためのゾルゲルSiO2層表面の改善検討,” 電子情報通信学会技術研究報告（大阪大学中之島センター、大阪）, Vol. 118, No. 399, LQE2018-172, pp. 127-130, 17th Jan. 2019
    12. Wenying Li, Yu Han, Zanhui Chen, Haisong Jiang, Kiichi Hamamoto,“光増幅器を用いたCRDS法の小型呼気センシング感度向上に関する検討,” 電子情報通信学会技術研究報告（大阪大学中之島センター、大阪）, Vol. 118, No. 399, LQE2018-197, pp. 251-254, 18th Jan. 2019
    13. Bingzhou Hong, Tomotaka Mori, Haisong Jiang, and Kiichi Hamamoto, “Mode Crosstalk Evaluation in Mode Selective Active Multimode Interferometer Laser Diode Based on Wavelength Spectrum Analysis Method Mode,” 2019年第66回応用物理学会春季学術講演会論文集 , Vol. 3, 9a-W331-4, pp. 03-141, 9th Mar. 2019
    14. Zan Hui Chen, Wenying Li, Yu Han, Haisong Jiang, and Kiichi Hamamoto, “Proposal of Two Tangent Hole Structure for Higher Sensitivity Gas Sensor”, 2019年第66回応用物理学会春季学術講演会論文集 , Vol. 3, 11a-W935-4, pp. 03-381, 11th Mar. 2019
    15. Wenying Li, Yu Han, Zanhui Chen, Haisong Jiang, and Kiichi Hamamoto “Amplifier Assisted CRDS (Cavity Ring down Spectroscopy) toward Compact Breath Sensing”, 2019年第66回応用物理学会春季学術講演会論文集 , Vol. 3, 11a-W935-5, pp. 03-382, 11th Mar. 2019
    16. Tomotaka Mori, Bingzhou Hong, Shingo Murakami, Haisong Jiang, Kiichi Hamamoto, “スリット構造導入によるアクティブMMIレーザ型モード選択光源のモード間クロストーク抑制”, 2019年第66回応用物理学会春季学術講演会論文集 , Vol. 3, 12a-W611-7, pp. 03-599, 12th Mar. 2019
    17. Kantaro Fujimoto、Haisong Jiang、Kiichi Hamamoto、“強結合光導波路構造による高次モード励起抑制効果に関する基礎検討,” 2019年第66回応用物理学会春季学術講演会論文集 , Vol. 3, 12p-W611-11, pp. 03-656, 12th Mar. 2019
    18. Haisong Jiang、Mahmoud Nasef、Kantaro Fujimoto、Kiichi Hamamoto,“スラブ導波路を用いた位相制御型単一次元空間モード合分波器,” 2019年第66回応用物理学会春季学術講演会論文集 , Vol. 3, 12p-M116-6, pp. 03-637, 12th Mar. 2019
    19. Satoshi Ogawa, Haisong Jiang, Kiichi Hamamoto, “空間1次元モード型N×N光モードスイッチ構造の提案,” 電子情報通信学会総合大会論文集2019, Vol. 1, C-3-5, pp. 116, 19th Mar. 2019
    20. Yu Han, Wenying Li, Haisong Jiang and Kiichi Hamamoto, “ Proposal of Thin Silicon Core High-Mesa Waveguide for Breath Sensors,” 電子情報通信学会総合大会2019, Vol. 1, C-3-36, pp. 147, 22th Mar. 2019
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    2017
      Doctor Thesis
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      Award
    1. 2016 Excellent Student Award, 6th Feb. 2017, IEEE Fukuoka Section Bingzhou Hong, Takuya Kitano, Akio Tajima, Haisong Jiang, and Kiichi Hamamoto, “First Demonstration of Mode Selective Light Source by using Active Multimode Interferometer Laser Diode,” Proceedings of Optoelectronics Communication Conference / Photonics in Switching (OECC/PS 2016, Niigata), TuD1-3, 5th July 2016
    2. 2016 Excellent Student Award, 6th Feb. 2017, IEEE Fukuoka Section Shota Oe, Haisong Jiang, and Kiichi Hamamoto, “Proposal of 128ch Coupled Multi-Core Fiber Configuration Using Coil-Shape (MCF),” Technical Digest of The 20th Microoptics Conference (MOC 2015, Fukuoka, Japan), PD5, 27th Oct. 2015
    3. 2016年IEEE福岡支部学生研究奨励賞（第16回）, 2017年2月6日受賞 Kazuhiro Tanabe, Yutaka Chaen, Ryosuke Sakata, Ryo Tanaka, Haisong Jiang, and Kiichi Hamamoto, “Design Criteria for Wavelength Independent MMI Mode Converter,” Technical Digest of The 20th Microoptics Conference (MOC 2015, Fukuoka, Japan), H51, 27th Oct. 2015
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      Journal Publications
    1. Kiichi Hamamoto, and Haisong Jiang, ” Active opto-electronic devices based on multi-mode interference among spatial single dimensional modes,” IEICE TRANSACTIONS on Electronics JPN Edition, Vol. J100-C, No. 2, pp. 72-81, 2017　(Invited Paper)
    2. Bingzhou Hong, Kitano Takuya, Haisong Jiang, Akio Tajima, and Kiichi Hamamoto, “First demonstration of mode selective active multimode interferometer laser diode,” IEICE Transaction on Electronics, Vol.E100-C, No.10, pp. 775-781, Oct. 2017
    3. Haisong Jiang, Ryan Imansyah, Luke Himbele, Shota Oe, and Kiichi Hamamoto, “Fast mode-switching (60 ns) by using 2 x 2 silicon optical mode switch,”IEICE Transaction on Electronics, Vol.E100-C, No.10, pp. 782-788, Oct. 2017
    4. Bingzhou Hong, Kitano Takuya, Haisong Jiang, and Kiichi Hamamoto, “Bandwidth enhancement scheme demonstration on direct modulation active-MMI laser diode using multiple photon photon resonance,” Applied Physics Letters, Vol. 111, pp. 221105, Nov. 2017
    5. Kiichi Hamamoto, and Haisong Jiang, “Advanced orbital angular momentum mode transmission on multi-core fiber,” Japanese Journal of Optics, Vol. 46, No. 11, pp. 433-438, 2017
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      Conference Publications (International)
    1. Bingzhou Hong, Takuya Kitano, Tomotaka Mori, Haisong Jiang, and Kiichi Hamamoto, “Bandwidth enhancement scheme demonstration (from 5 GHz to 34 GHz) on direct modulation laser diode using active MMI,” Proceedings of 43rd European Conference of Optical Communication, P1. SC1. 22, 19th Sep. 2017
    2. Kiichi Hamamoto and Haisong Jiang, “Optical mode switch and mode selective light source toward flexible mode-division multiplexing network, Proceedings of Advanced Photonics Congress / Photonics in Switching, PTh1D.4, 27th July 2017, Invited paper
    3. Ryan Imansyah, Luke Himbele, Shota Oe, Haisong Jiang, and Kiichi Hamamoto, “Dynamic mode-swithing by using optical mode switch,” Proceedings of The International Symposium on Extremely Advanced Transmission Technology (EXAT 2017, Nara, Japan), P25, 8th Jun. 2017
    4. Bingzhou Hong, Tomotaka Mori, Haisong Jiang, and Kiichi Hamamoto, “Mode selective light source based on active multimode interferometer laser diode,” Proceedings of The International Symposium on Extremely Advanced Transmission Technology (EXAT 2017, Nara, Japan), P24, 8th Jun. 2017
    5. Kantaro Fujimoto, Haisong jiang, and Kiichi Hamamoto, “Proposal of mode-maintaining slit waveguide,” Proceedings of The 24th Congress of the International Commission for Optics (ICO-24, Tokyo, Japan), P14-05, 22nd Aug. 2017
    6. Yuto Morita, Haisong jiang, and Kiichi Hamamoto, “Single step ICP (Inductively coupled plasmas) dry-etching condition for lateral pin waveguide,” Proceedings of The 24th Congress of the International Commission for Optics (ICO-24, Tokyo, Japan), P14-09, 22nd Aug. 2017
    7. Bingzhou Hong, Tomotaka Mori, Haisong Jiang, and Kiichi Hamamoto, “Multiple photon photon resonance by using active-multimode interferometer laser diode,” Technical Digest of The 22nd Microoptics Conference (MOC 2017, Tokyo, Japan), C-2, 20th Nov. 2017
    8. Kiichi Hamamoto and Haisong Jiang, “Photonic integrated devices for mode division multiplexing,” Proc. OPJ symposium, 31aDS1, 31st Oct. 2017 (Invited)
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      Conference Publications (Domestic)
    1. Shota Oe, Ryan Imansyah, Luke Himbele, Haisong Jiang, and Kiichi Hamamoto, “First demonstration of dynamic mode-switching by using optical mode switch,” Technical Digest of The 64th JSAP spring meeting 2017, Vol. 3, 16a-422-2, pp. 03-385, 16th Mar. 2017
    2. Bingzhou Hong, Takuya Kitano, Haisong Jiang, and Kiichi Hamamoto, “Mode selective light source based on active multimode interferometer laser diode,” Technical Digest of The 64th JSAP spring meeting 2017, Vol. 3, 15p-422-16, pp. 03-262 , 15th Mar. 2017
    3. Bingzhou Hong, Takuya Kitano, Tomotaka Mori, Haisong Jiang, and Kiichi Hamamoto, “Direct modulation bandwidth enhancement method based on active-multimode interferometer laser diode utilizing multiple photon photon resonance,” Technical Digest of The 78th JSAP autumn meeting 2017, Vol. 3, 6p-C14-15, pp. 03-323, 6th Sep. 2017
    4. Yuto Morita, Haisong jiang, and Kiichi Hamamoto，“Single step ICP (inductively coupled plasmas) dry-etching condition for lateral pin waveguide,” Technical Digest of The 78th JSAP autumn meeting 2017, Vol. 3, 6a-C14-1, pp. 03-120, 6th Sep. 2017
    5. Ahmad Syahrin Idris, Sampad Ghosh, Haisong Jiang, Kiichi Hamamoto, “Multi-layer all sol-gel fabrication technique on bulk silicon toward vertical coupler,” Technical Digest of The 78th JSAP autumn meeting 2017, Vol. 3, 6a-C14-3, pp. 03-122, 6th Sep. 2017
    6. Kiichi Hamamoto, “Optical device technology for mode division multiplexing,” Proceedings of the IEICE Society Conference, No.1, CI-2-5, 12th Sep. 2017
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      Seminar
    1. (1) Kiichi Hamamoto, “Active MMI devices－Concept, proof, and recent progress－,” Academia Scinica (Taipei, Taiwan), 16th Jan. 2017
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    2016
      Doctor Thesis
    1. Hirohito Hokazono, Research on application of Fourier transform of optical waveguide, Jan. 2016
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      Award
    1. Bingzhou Hong, Takuya Kitano, Akio Tajima, Haisong Jiang, and Kiichi Hamamoto, “First Demonstration of Mode Selective Light Source by using Active Multimode Interferometer Laser Diode,” Proceedings of Optoelectronics Communication Conference / Photonics in Switching (OECC/PS 2016, Niigata), 5th TuD1-3, July 2016
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      Journal Publications
    1. Ryan Imansyah, Tatsushi Tanaka, Luke Himbele, Haisong Jiang, and Kiichi Hamamoto, “Mode Crosstalk Evaluation on Optical Mode Switch by Using MMI Mode Filter,” IEICE Transaction on Electonics, Vol. E99-C, No. 7, pp. 825-829, July 2016
    2. Ryan Imansyah, Tatsushi Tanaka, Luke Himbele, Haisong Jiang and Kiichi Hamamoto, “Electrically Controlled Optical Mode Switch,” Japanese Journal of Applied Physics, Vol. 55, 08RB06, July 2016
    3. Takuya Kitano, Mohammad Nasir Uddin, Bingzhou Hong, Akio Tajima, Haisong Jiang, and Kiichi Hamamoto, “Demonstration of photon–photon resonance peak enhancement by waveguide configurationmodification on active multimode interferometer laser diode,” Japanese Journal of Applied Physics, Vol. 55, 08RD04, July 2016
    4. Ahmad Syahrin Idris, Haisong Jiang, and Kiichi Hamamoto, “Accurate dry etching technique for germanium waveguide by using CHF3 based inductively coupled plasma,” Electronics Letters, Vol. 52, No. 22, pp. 1868-1869, Oct. 2016
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      Conference Publications (International)
    1. Ryan Imansyah, Luke Himbele, Shota Oe, Haisong Jiang, and Kiichi Hamamoto, “First Demonstration of Dynamic Mode-Switching by Using Optical Mode Switch,” Proceedings of Optoelectronics Communication Conference / Photonics in Switching (OECC/PS 2016, Niigata), ME2-4, 4th July 2016
    2. Bingzhou Hong, Takuya Kitano, Akio Tajima, Haisong Jiang, and Kiichi Hamamoto, “First Demonstration of Mode Selective Light Source by using Active Multimode Interferometer Laser Diode,” Proceedings of Optoelectronics Communication Conference / Photonics in Switching (OECC/PS 2016, Niigata), TuD1-3, 5th July 2016
    3. Ryosuke Sakata, Kazuhiro Tanabe, Haisong Jiang, and Kiichi Hamamoto, “Significant Loss Reduction of 3.0 dB/cm on Core-Top Etched Waveguide for Vertical Multi-Mode Interference,” Proceedings of Optoelectronics Communication Conference / Photonics in Switching (OECC/PS 2016, Niigata), TuE4-5, 5th July 2016
    4. Xiaoyang Cheng, Luke Himbele, Ryan Imansya, Haisong Jiang, and Kiichi Hamamoto, “Preliminary research of MCF Coupling to Optical Mode Switch Configuration,” Proceedings of Optoelectronics Communication Conference / Photonics in Switching (OECC/PS 2016, Niigata), WA2-98, 6th July 2016
    5. Bingzhou Hong, Takuya Kitano, Haisong Jiang, and Kiichi Hamamoto, “Lateral Mode Interference Observation in Emission Spectrum on Mode Selective active-Multimode Interferometer Laser Diode,” Proceedings of International Conference of Semiconductor Laser (ISLC 2016, Kobe), WE30, 14th Sep. 2016
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      Conference Publications (Domestic)
    1. Luke Himbele, Ryan Imansyah, Haisong Jiang and Kiichi Hamamoto, “Preliminary Crosstalk Evaluation of Optical Mode Switch,”　 Proceedings of The IEICE General Conference 2016, Vol. 1, C-3-51, pp. 189, 18th Mar. 2016
    2. Shota Enami, Ahmad Syahrin Idris, Haisong Jiang and Kiichi Hamamoto,　 “TiO2 thin film deposition by sol-gel method,” Proceedings of The IEICE General Conference 2016, Vol. 1, C-6-4, pp. 10, 17th Mar. 2016
    3. Ryosuke Sakata, Kazuhiro Tanabe, Haisong Jiang, and Kiichi Hamamoto, “Preliminary Evaluation of Excess Loss of Core-Top Dry Etched Waveguide,” Proceedings of The IEICE General Conference 2016, Vol. 1, C-3-57, pp. 195, 18th Mar. 2016
    4. Kazuhiro Tanabe, Ryosuke Sakata, Haisong Jiang, and Kiichi Hamamoto, “Preliminary Evaluation of Multi-Mode Interference in Vertical Direction,” Proceedings of The IEICE General Conference 2016,, Vol. 1, C-3-58, pp. 196, 18th Mar. 2016
    5. Shota Oe, Haisong Jiang, and Kiichi Hamamoto, “Proposal of 128ch Coupled Multi-Core Fiber Configuration Using Coil-Shape,” Proceedings of The IEICE General Conference 2016, Vol. 1, C-3-59, pp. 197, 18th Mar. 2016
    6. Takuya Kitano, Mohammad Nasir Uddin, Bingzhou Hong, Akio Tajima, Haisong Jiang, and Kiichi Hamamoto, “Demonstration of Photon-Photon Resonance Peak Enhancement by Waveguide Design Modification on Active Multimode Interferometer Laser Diode,” Proceedings of The IEICE General Conference 2016, Vol. 1, C-4-10, pp. 214, 16th Mar. 2016
    7. Bingzhou Hong, Mohammad Nasir Uddin, Takuya Kitano, Akio Tajima, Haisong Jiang, and Kiichi Hamamoto, “Theoretical Modelling of Photon-Photon Resonance on Active Multimode Interferometer Laser Diode,” Proceedings of The IEICE General Conference 2016, Vol. 1, C-4-9, pp. 213, 16th Mar. 2016
    8. Ahmad Syahrin Idris, Haisong Jiang, and Kiichi Hamamoto, “Dry Etching of Ge by Using CHF3　Inductively Coupled Plasma for Ge Waveguides,”　 Proceedings of The IEICE General Conference 2016, Vol. 1, C-3-42, pp. 180, 18th Mar. 2016
    9. Shota Oe, Ryan Imansyah, Luke Himbele, Haisong Jiang, and Kiichi Hamamoto, “First Demonstration of Dynamic Mode-Switching by Using Optical Mode Switch” Technical Digest of The 64th JSAP spring meeting 2017, Vol. 3, 16a-422-2, pp. 03-385, 16th Mar. 2017
    10. Bingzhou Hong, Takuya Kitano, Haisong Jiang, and Kiichi Hamamoto, “Mode Selective Light Source Based on Active multimode Interferometer Laser Diode,” Technical Digest of The 64th JSAP spring meeting 2017, Vol. 3, 15p-422-16, pp. 03-362 , 15th Mar. 2017
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    2015
      Doctor Thesis
    1. Yutaka Chaen, Optical Device for Multi-mode Division Multiplexing by Using MMI (Multi-Mode Interference) Waveguide, Jan. 2015
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      Award
    1. Ryan Imansyah, Luke Himbele, Haisong Jiang, and Kiichi Hamamoto, “First Demonstration of Electrically Controlled Mode Switching,” Technical Digest of The 20th Microoptics Conference (MOC 2015, Fukuoka, Japan), D3, 26th Oct. 2015
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      Journal Publications
    1. Kiichi Hamamoto, and Haisong Jiang, “Active-MMI Devices: Concept, Proof, and Recent Progress”, Journal of Physics D: Applied Physics, Vol. 48, No. 38, 383001, Sep. 2015
    2. Hirohito Hokazono, Wenying Li, Syota Enami, Haisong Jiang, and Kiichi Hamamoto, “Gas Sensing Demonstration by Using Silica High-mesa Waveguide with Amplified Cavity Ring Down Spectroscopy Technique,” IEICE Electronics Express (ELEX), Vol.12, No.15, 20150574, Jul. 2015.
    3. Yutaka Chaen, Kazuhiro Tanabe, Haisong Jiang, and Kiichi Hamamoto, “Low Wavelength Dependency Design for MMI (Multi-Mode Interference) Mode Converter,” IEICE Electronics Express (ELEX), Vol.12, No. 20, 20150727, Oct. 2015.
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      Conference Publications (International)
    1. Ryan Imansyah, Tatsushi Tanaka, Luke Himbele, Haisong Jiang, and Kiichi Hamamoto, “Mode Crosstalk Evaluation on Optical Mode Switch,” Proceedings of IEEE International Broadband and Photonics Conference (IBP 2015, Bali, Indonesia), IBP2015-P3.2, Vol. 114, No. 453, pp. 133-136, 24th Apr. 2015
    2. Wenying Li, Hirohito Hokazono, Syota Enami, Haisong Jiang, and Kiichi Hamamoto, “First Demonstration of Gas Sensing Using Silica High-Mesa Waveguide,” Technical Digest of 20th OptoElectronics and Communications Conference (OECC 2015, Shanghai, China), PWe. 49, 1st Jul. 2015.
    3. Kazuhiro Tanabe, Yutaka Chaen, Ryosuke Sakata, Ryo Tanaka, Haisong Jiang, and Kiichi Hamamoto, “Low Wavelength Dependency Design Theory for MMI (Multi-Mode Interference) Mode Converter,” Technical Digest of The International Symposium on Extremely Advanced Transmission Technology (EXAT 2015, Kyoto, Japan), P33, 13th Jul. 2015
    4. Ryan Imansyah, Luke Himbele, Haisong Jiang, and Kiichi Hamamoto, “Mode Crosstalk Evaluation on Optical Mode Switch,” Technical Digest of The International Symposium on Extremely Advanced Transmission Technology (EXAT 2015, Kyoto, Japan), P17, 13th Jul. 2015
    5. Hirohito Hokazono, Hodaka Sakamoto, Hatem EI Serafy, Haisong Jiang, and Kiichi Hamamoto, “Preliminary Research on Advanced OAM Mode Device with Using MCF,” Technical Digest of The International Symposium on Extremely Advanced Transmission Technology (EXAT 2015, Kyoto, Japan), P18, 13th Jul. 2015
    6. Ryan Imansyah, Luke Himbele, Haisong Jiang, and Kiichi Hamamoto, “Single-Step Dry-Etched Lateral PIN by Using Trench Structure for Optical Mode Switch,” Technical Digest of photonics in switching 2015 (PS 2015, Florence, Italy), Thl2-7, 24th Sep. 2015
    7. Ryan Imansyah, Luke Himbele, Haisong Jiang, and Kiichi Hamamoto, “First Demonstration of Electrically Controlled Mode Switching,” Technical Digest of The 20th Microoptics Conference (MOC 2015, Fukuoka, Japan), D3, 26th Oct. 2015
    8. Kazuhiro Tanabe, Yutaka Chaen, Ryosuke Sakata, Ryo Tanaka, Haisong Jiang, and Kiichi Hamamoto, “Design Criteria for Wavelength Independent MMI Mode Converter,” Technical Digest of The 20th Microoptics Conference (MOC 2015, Fukuoka, Japan), H51, 27th Oct. 2015
    9. Ryosuke Sakata, Kazuhiro Tanabe, Ryo Tanaka, Haisong Jiang, and Kiichi Hamamoto, “Preliminarily Propagation Loss for Core-Top Etched Waveguide for Step-Core LP21 Mode Converter,” Technical Digest of The 20th Microoptics Conference (MOC 2015, Fukuoka, Japan), H52, 27th Oct. 2015
    10. Bingzhou Hong, Mohammad Nasir Uddin, Takuya Kitano, Akio Tajima, Haisong Jiang, and Kiichi Hamamoto, “Theoretical modelling of photon-photon resonance on active multimode interferometer laser diode toward 40Gbps”, Technical Digest of The 20th Microoptics Conference (MOC 2015, Fukuoka, Japan), H66, 27th Oct. 2015
    11. Takuya Kitano, Mohammad Nasir Uddin, Bingzou Hong, Akio Tajima, Haisong Jiang, and Kiichi Hamamoto, “Demonstration of Photon-photon Resonance Peak Enhancement by Waveguide Design Modification on Active Multimode Interferometer Laser Diode”, Technical Digest of The 20th Microoptics Conference (MOC 2015, Fukuoka, Japan), H70, 27th Oct. 2015
    12. Haisong Jiang, Toshimichi Oiwane, and Kiichi Hamamoto, “Proposal of Novel Optical Mode Demultiplexer Based on Angled-Multimode Interference (a-MMI) Waveguide,” Technical Digest of The 20th Microoptics Conference (MOC 2015, Fukuoka, Japan), H47, 27th Oct. 2015
    13. Ahmad Syahrin Idris, Haisong Jiang, and Kiichi Hamamoto, “Dry Etching for Germanium Waveguides by Using CHF3 Inductively Coupled Plasm,” Technical Digest of The 20th Microoptics Conference (MOC 2015, Fukuoka, Japan), H23, 27th Oct. 2015
    14. Shota Oe, Haisong Jiang, and Kiichi Hamamoto, “Proposal of 128ch Coupled Multi-Core Fiber Configuration Using Coil-Shape (MCF),” Technical Digest of The 20th Microoptics Conference (MOC 2015, Fukuoka, Japan), PD5, 27th Oct. 2015
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      Conference Publications (Domestic)
    1. Ryota Tanaka, Hirohito Hokazono, Hodaka Sakamoto, Haisong Jiang, and Kiichi Hamamoto, “Cross Talk Analysis on Advanced OAM Mode Device for N-core MCF Transmission,” IEICE Technical Report, OPE2014-225, Vol. 114, No. 453, pp.127-130, 20th Feb. 2015 (
    2. Ryan Imansyah, Tatsushi Tanaka, Luke Himbele, Haisong Jiang and Kiichi Hamamoto, “Preliminary Crosstalk Evaluation on Optical Mode Switch,” IEICE Technical Report, OPE2014-226, Vol. 114, No. 453, pp.133-136, 20th Feb. 2015
    3. Takuya Kitano, Mohammad Nasir Uddin, Hong Bingzhou, Akio Tajima, Kazutoshi Kato, and Kiichi Hamamoto, “17.2GHz Extended Bandwidth Active MMI LD by Using Photon Photon Resonance,” Proceedings of The IEICE General Conference, Vol. 1, C-4-4, pp. 200, 10th Mar. 2015 (Ritsumeikan Univ., Kusatsu)
    4. Hodaka Sakamoto, Hirohito Hokazono, Ryota Tanaka, Haisong Jiang, and Kiichi Hamamoto, “Cross Talk Analysis Advanced OAM Mode Device,” Proceedings of The IEICE General Conference, Vol. 2, B-10-48, pp. 384, 11th Mar. 2015 (Ritsumeikan Univ., Kusatsu)
    5. Luke Himbele, Tatsushi Tanaka, Ryan Imansyah, Haisong Jiang and Kiichi Hamamoto, “Preliminary Crosstalk Evaluation of Optical Mode Switch,”　 Proceedings of The IEICE General Conference, Vol. 1, C-3-65, pp. 189, 11th Mar. 2015 (Ritsumeikan Univ., Kusatsu)
    6. Kazuhiro Tanabe, Yutaka Chaen, Ryosuke Sakata, Ryo Tanaka, Haisong Jiang and Kiichi Hamamoto, “Design Criteria for Wavelength Independent MMI Mode Converter,” Proceedings of The IEICE Society Conference, Vol. 1, C-3-23, pp.97, 9th Sep. 2015 (Tohoku Univ., Sendai)
    7. Ryan Imansyah, Tatsushi Tanaka, Luke Himbele, Haisong Jiang and Kiichi Hamamoto, “Electrically Controlled Mode Switching Using Trench Structure,” Proceedings of The IEICE Society Conference, Vol. 1, C-3-17, pp. 91,　10th Sep. 2015 (Tohoku Univ., Sendai)
    8. Wenying Li, Hirohito Hokazono, Shota Enami, Haisong Jiang and Kiichi Hamamoto, “Gas Sensing Using Silica High-Mesa Waveguide for Compact Breath Sensing,” Proceedings of The IEICE Society Conference, Vol. 1, C-3-50, pp. 124, 10th Sep. 2015 (Tohoku Univ., Sendai)
    9. Ryosuke Sakata, Kazuhiro Tanabe, Ryo Tanaka, Haisong Jiang and Kiichi Hamamoto, “Preliminarily Propagation Loss Evaluation of Core-Top Etched Waveguide for Step-Core LP21 Mode Converter,” IEICE Technical Report, OPE2015-115, Vol. 115, No. 277, pp. 123-126, 30th Oct. 2015
    10. Kazuhiro Tanabe, Yutaka Chaen, Ryosuke Sakata, Ryo Tanaka, Haisong Jiang and Kiichi Hamamoto, “Design Criteria for Wavelength Independent MMI Mode Converter,” IEICE Technical Report, OPE2015-117, Vol. 115, No. 277, pp. 133-136, 30th Oct. 2015
    11. Bingzhou Hong, Mohammad Nasir Uddin, Takuya Kitano, Akio Tajima, Haisong Jiang, and Kiichi Hamamoto, “Theoretical Analysis of Photon-Photon Resonance on Active Multimode Interferometer Laser Diode,” IEICE Technical Report, OPE2015-91, Vol. 115, No. 277, pp.1-4, 29th Oct. 2015
    12. Luke Himbele, Tatsushi Tanaka, Ryan Imansyah, Haisong Jiang and Kiichi Hamamoto, “Single-Step Dry-Etched Lateral PIN by Using Trench Structure for Optical Mode Switch," IEICE Technical Report, OPE2015-107, Vol. 115, No. 277, pp. 81-84, 30th Oct. 2015
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      Invited
    1. Kiichi Hamamoto, “Active MMI devices –concept, proof, and recent progress-,” Technical Digest of The 20th Microoptics Conference (MOC 2015, Fukuoka, Japan), TU5, 25th Oct. 2015
    2014
      Doctor Thesis
    1. Jiao Chen, “Silica High-Mesa Waveguide for Compact Infrared Sensing System,” January 2014
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      Award
    1. Yutaka Chaen, Zhao Zhao, Yuuta Satou and Kiichi Hamamoto, “Quasi-LP21 Mode Converter by Using Simple Step-Core Structure,” Technical Digest of 18th OptoElectronics and Communications Conference / Photonics in Switching (OECC/PS 2013, Kyoto, Japan), TuPL-14, 2nd Jul. 2013
    2. Jiao Chen, Hirohito Hokazono, Daisuke Nakashima, Yasuaki Hashizume, Mikitaka Itoh, and Kiichi Hamamoto, “Low Loss Silica High-Mesa Waveguide for Infrared Sensing,” Technical Digest of 18th OptoElectronics and Communications Conference / Photonics in Switching (OECC/PS 2013, Kyoto, Japan), ThL1-1, 4th Jul. 2013
    3. Mohammad Nasir Uddin, Takaaki Kizu, Yasuhiro Hinokuma, Akio Tajima, Kazutoshi Kato, and Kiichi Hamamoto, “Resonance frequency enhancement by using splitted pumping region active multi-mode interferometer laser diode,” Technical Digest of 18th OptoElectronics and Communications Conference / Photonics in Switching (OECC/PS 2013, Kyoto, Japan), TuPK-7, 2nd Jul. 2013
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      Journal Publications
    1. Jiao Chen, Hirohito Hokazono, Daisuke Nakashima, Miki Tsujino, Yasuaki Hashizume, Mikitaka Itoh, and Kiichi Hamamoto, “Low loss silica high-mesa waveguide for infrared sensing,” Japanese Journal of Applied Physics, Vol. 53, pp. 022502 1-7, Jan. 2014
    2. Mohammad Nasir Uddin, Takaaki Kizu, Yasuhiro Hinokuma, Kazuhiro Tanabe, Akio Tajima, Kazutoshi Kato, and Kiichi Hamamoto, “Split pump region in 1.55m InGaAsP/InP asymmetric active multi-mode interferometer laser diode for improved modulation bandwidth,” IEICE Transactions on Electronics, Vol. E97-C, No. 7, pp. 781-786, July 2014
    3. Mohammad Nasir Uddin, Takaaki Kizu, Yasuhiro Hinokuma, Bingzhou Hong, Akio Tajima, Kazutoshi Kato, and Kiichi Hamamoto, “High intrinsic modulation bandwidth InGaAsP/InGaAsP 1.55μm asymmetric active multimode interferometer laser diode by using split pump configuration,” Japanese Journal of Applied Physics, Vol. 53, 08MB09, July 2014
    4. Ryuta Takakura, Makoto Jizodo, Asuka Fujino, Tatsushi Tanaka, and Kiichi Hamamoto, “Proposal of Optical Mode Switch,” Japanese Journal of Applied Physics, Vol. 53, 08MB10, July 2014
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      Conference Publications (International)
    1. Kiichi Hamamoto, “(Invited) Optical Mode Switch for Future Optical Router,” Proceedings of European Conference on Integrated Optics / Micro Optics Conference (ECIO-MOC 2014, Nice, France), Th 4b I1, 26th June 2014
    2. Mohammad Nasir Uddin, Hon Bingzhou, Akio Tajima, Kazutoshi Kato and Kiichi Hamamoto, “First Observation of Photon-Photon Resonance in Active Multimode Interferometer Laser Diode,” Proceedings of European Conference on Integrated Optics / Micro Optics Conference (ECIO-MOC 2014, Nice, France), Th 4a R07, 26th June 2014
    3. Kiichi Hamamoto, “(Invited) Optical Mode Switch for High Speed Switching Network,” Technical Digest of Advanced Photonics for Communication / Photonics in Switching (APC/PS 2014, San Diego, USA), PT1B.2, 15th July 2014
    4. Hirohito Hokazono, Ryota Tanaka, Haisong Jiang, and Kiichi Hamamoto, “Advanced OAM Mode Scheme for Transmission Channel Enhancement of Over N on N-core MCF Toward 100 ch,” Technical Digest of Advanced Photonics for Communication / Networks (APC/Netwokrs 2014, San Diego, USA), JT3A.18, 15th July 2014
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      Conference Publications (Domestic)
    1. Jiao Chen, Hirohito Hokazono, Miki Tsujino, W-Y. Li, and Kiichi Hamamoto, “Proposal of Multiple-Slot Silica High-Mesa Waveguide for Infrared Absorption,” Proceedings of The IEICE General Conference, Vol. 1, C-3-37, pp. 192、18th Mar. 2014 (Niigata Univ., Niigata)
    2. Yutaka Chaen, Ryouta Tanaka, and Kiichi Hamamoto, “Optical Mode Converter Using Multi-Mode Interference Structure,” Proceedings of The IEICE General Conference,Vol. 1, C-3-51, pp. 206, 19th Mar. 2014 (Niigata Univ., Niigata)
    3. Ryuta Takakura, Makoto Jizodo, Asuka Fujino, Tatsushi Tanaka, Ryan Imansyah and Kiichi Hamamoto, “Optical Mode Switch Configuration For Four Modes,” Proceedings of The IEICE General Conference, Vol. 1, C-3-52, pp. 207, 19th Mar. 2014 (Niigata Univ., Niigata)
    4. Hirohito Hokazono, Jiao Chen, Miki Tsujino, Yasuaki Hashizume, Mikitaka Itoh, and Kiichi Hamamoto, “Liquid Concentration Measurement by using Silica High-Mesa Waveguide” Proceedings of The IEICE General Conference, Vol. 1, C-3-30, pp. 185, 20th Mar. 2014 (Niigata Univ., Niigata)
    5. Miki Tsujino, Hirohito Hokazono, Jiao Chen, and Kiichi Hamamoto, “Preliminary Research on Optical Amplifier Assisted Cavity Ring Down Spectroscopy,” Proceedings of The IEICE General Conference, Vol. 1, C-3-31, pp. 186, 20th Mar. 2014 (Niigata Univ., Niigata)
    6. Mohammad Nasir Uddin, Takaaki Kizu, Yasuhiro Hinokuma, Hong Bingzhou, Akio Tajima, Kazutoshi Kato, and Kiichi Hamamoto, “Demonstration of Split Pump Configuration in Active MMI-LD for The Realization of High Intrinsic Modulation Bandwidth,” Proceedings of The IEICE General Conference, Vol. 1, C-3-69, pp. 224, 21st Mar. 2014 (Niigata Univ., Niigata)
    7. Hirohito Hokazono, Ryota Tanaka, Hodaka Sakamoto, Haisong Jiang, and Kiichi Hamamoto, ” Proposal of Advanced OAM Scheme for High Transmission Capacity on MCF,” Proceedings of The IEICE Society Conference 2014, C-3-23, pp. 120, 23rd Sep. 2014 (Tokushima Univ., Tokushima)
    8. Mohammad Nasir Uddin, Hong Bingzhou, Takuya Kitano, Akio Tajima, Kazutoshi Kato, and Kiichi Hamamoto, “Photon-Photon Resonance in Active Multimode Interferometer Laser Diode,” Proceedings of The IEICE Society Conference 2014, C-4-6, pp. 160, 23rd Sep. 2014 (Tokushima Univ., Tokushima)
    9. Mohammad Nasir Uddin, Hong Bingzhou, Takuya Kitano, Akio Tajima, Kazutoshi Kato, and Kiichi Hamamoto, “Bandwidth Enhancement by Coupling to Higher Order Resonances in Active Multimode Interferometer Laser Diode,” IEICE Technical Report, OPE 2014-93, Vo. 114, No. 281, pp. 37-42, 30th Oct. 2014
    10. Tatsushi Tanaka, Ryan Imansyah, Luke Himble, Haisong Jiang, and Kiichi Hamamoto, “Fundamental study for realizing the optical mode switch,” IEICE Technical Report, OPE 2014-119, Vo. 114, No. 281, pp. 175-178, 30th Oct. 2014
    11. Ryota Tanaka, Hirohito Hokazono, Hodaka Sakamoto, Haisong Jiang, and Kiichi Hamamoto, “Proposal of Novel Advanced OAM Mode for Transmission Channel Enhancement of Over N on N-core MCF,” IEICE Technical Report, OPE 2014-121, Vo. 114, No. 281, pp. 185-188, 30th Oct. 2014
    12. Mohammad Nasir Uddin, Hong Bingzhou, Takuya Kitano, Akio Tajima, Kazutoshi Kato and Kiichi Hamamoto, “Bandwidth Enhancement by Coupling to Higher Order Resonances in Active Multimode Interferometer Laser Diode,” IEICE Technical Report, OPE 2014–149, Vo. 114, No. 337, pp. 51-57, 19th Dec. 2014
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    2013
      Doctor Thesis
    1. Alam Intekhab, “SOI-based Si/Sio2 High-mesa Waveguide for Optical Absorption Sensing”, July 2013
    2. Tsuyoshi Ohgoh, “High performance GaAs opto-electronic active devices”, July 2013
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      Journal Publications
    1. Tsuyoshi Ohgoh, Hideki Asano*, and Kiichi Hamamoto, “Reliability Improvement of Superluminescent Diodes Emitting at 1.0m Band by Using InGaAsP Barrier Structure“, Electronics Letters, Vol. 49, No. 6, EL20130080, Jan. 2013 *Fuji Film
    2. Yasuhiro Hinokuma, Zhipeng Yuen, Teppei Fukuda, Takahira Mitomi, and Kiichi Hamamoto, “Single-Wavelength Emission by Using 1 x N Active Multi-Mode Interferometer Laser Diode,” IEICE Transactions on Electronics, Vol.E96-C, No.11, pp.1413-1419, Nov. 2013
    3. Jiao Chen, Hirohito Hokazono, Miki Tsujino, Daisuke Nakashima, and Kiichi Hamamoto, “Proposal of multiple-slot silica high-mesa waveguide for infrared sensing”, Institute of Electronics, Information and Communication Engineers (IEICE) Electronics Express (ELEX). Vol. 10, No. 23, pp. 1-7, Dec. 2013
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      Conference Publications (International)
    1. Daisuke Nakashima, and Kiichi Hamamoto, “Proposal of Novel Strip High-Mesa Waveguide for Infrared Absorption Sensing”, Proceedings of The 14th Cross Straights Symposium on Energy and Environmental Science and Technology, p1-3-1, pp. 133-134, 18th Feb. 2013
    2. Miki Tsujino, Daisuke Nakashima, Hirohito Hokazono, Jiao Chen, and Kichi Hamamoto, “Preliminary Research on CRDS Including EDFA for Volatile Gas Sensing”, Proceedings of The 14th Cross Straights Symposium on Energy and Environmental Science and Technology, p1-3-5, pp. 141-142, 18th Feb. 2013
    3. Yasuhiro Hinokuma, Takaaki Kizu, Mohammad Nasir Uddin, and Kiichi Hamamoto, “CW Single Wavelength Emission @RT on Active-MMI LD”, Proceedings of The 14th Cross Straights Symposium on Energy and Environmental Science and Technology, o2-1-2, pp. 35-36, 19th Feb. 2013
    4. Makoto Jizodo, Asuka Fujino, and Kiichi Hamamoto, “Proposal of Spatial Mode Switch”, Proceedings of The 14th Cross Straights Symposium on Energy and Environmental Science and Technology, o2-1-3, pp. 37-38, 19th Feb. 2013
    5. Zhao Zhao, Yutaka Chaen, Kiichi Hamamoto, “Mode Converter by Using MMI (Multi-Mode Interference) for Mode Multiplexing Transmission”, Proceedings of The 14th Cross Straights Symposium on Energy and Environmental Science and Technology, o2-1-4, pp. 39-40, 19th Feb. 2013
    6. Hirohito Hokazono, Daisuke Nakashima, Jiao Chen, Miki Tsujino, and Kiichi Hamamoto, “Silica-Based High-Mesa Waveguide for Compact Breath-Sensing System”, Proceedings of The 14th Cross Straights Symposium on Energy and Environmental Science and Technology, o2-3-3, pp. 53-54, 19th Feb. 2013
    7. Yutaka Chaen, Zhao Zhao, and Kiichi Hamamoto, “Full C-Band Spatial Multi-Mode Combiner Based on Multi-Mode Interference” , Proceedings of The 14th Cross Straights Symposium on Energy and Environmental Science and Technology, o3-1-3, pp. 61-62, 19th Feb. 2013
    8. Takaaki Kizu, Yasuhiro Hinokuma, Mohammad Nasir Uddin, and Kiichi Hamamoto, “SMSR Improvement on Single Wavelength Active-MMI LD”, Proceedings of The 14th Cross Straights Symposium on Energy and Environmental Science and Technology, p2-1-1, pp. 163-164, 19th Feb. 2013
    9. Kazuki Ikeda, Nobuyasu Hamamori, and Kiichi Hamamoto, “Fundamental Research on Wide Band Optical Filter Using MMI (Multi-Mode-Interference) Waveguide”, Proceedings of The 14th Cross Straights Symposium on Energy and Environmental Science and Technology, p2-1-2, pp. 165-166, 19th Feb. 2013
    10. Yuuta Satou, Yutaka Chaen, Zhao Zhao, and Kiichi Hamamoto, “Proposal of Quasi-LP21 Mode Converter by Using Multi-Mode Interference”, Proceedings of The 14th Cross Straights Symposium on Energy and Environmental Science and Technology, p2-1-3, pp. 167-168, 19th Feb. 2013
    11. Asuka Fujino, Makoto Jizodo, and Kiichi Hamamoto, “Si-Wire Waveguide Optical Switch by Using Narrow Trench Electrode”, Proceedings of The 14th Cross Straights Symposium on Energy and Environmental Science and Technology, p2-1-4, pp. 169-170, 19th Feb. 2013
    12. Mohammad Nasir Uddin, Takaaki Kizu, Yasuhiro Hinokuma, Akio Tajima, Kazutoshi Kato, and Kiichi Hamamoto, “Resonance frequency enhancement by using splitted pumping region active multi-mode interferometer laser diode,” Technical Digest of 18th OptoElectronics and Communications Conference / Photonics in Switching (OECC/PS 2013, Kyoto, Japan), TuPK-7, 2nd Jul. 2013
    13. Yutaka Chaen, Zhao Zhao, Yuuta Satou and Kiichi Hamamoto, “Quasi-LP21 Mode Converter by Using Simple Step-Core Structure,” Technical Digest of 18th OptoElectronics and Communications Conference / Photonics in Switching (OECC/PS 2013, Kyoto, Japan), TuPL-14, 2nd Jul. 2013
    14. Makoto Jizodo, Asuka Fujino, and Kiichi Hamamoto, “Proposal of Optical Spatial Mode Switch Using Symmetric Y-junction Waveguides,” Technical Digest of 18th OptoElectronics and Communications Conference / Photonics in Switching (OECC/PS 2013, Kyoto, Japan), TuPT-1, 2nd Jul. 2013
    15. Jiao Chen, Hirohito Hokazono, Daisuke Nakashima, Yasuaki Hashizume, Mikitaka Itoh, and Kiichi Hamamoto, “Low Loss Silica High-Mesa Waveguide for Infrared Sensing,” Technical Digest of 18th OptoElectronics and Communications Conference / Photonics in Switching (OECC/PS 2013, Kyoto, Japan), ThL1-1, 4th Jul. 2013
    16. Ryuta Takakura, Asuka Fujino, Tatsushi Tanaka, and Kiichi Hamamoto, “Proposal of optical mode switch configuration for four modes”, Technical Digest of The 18th Microoptics Conference, H1, pp. 56, 29 Oct. 2013
    17. Mohammad Nasir Uddin, Takaaki Kizu, Yasuhiro Hinokuma, Kazuhiro Tanabe, Akio Tajima, Kazutoshi Kato, and Kiichi Hamamoto, “First deomstration of high intrinsic modulation bandwidth (26.4GHz) in active multimode interferometer laser diode by using split pumping configuration”, Technical Digest of The 18th Microoptics Conference, H17, pp. 72, 29 Oct. 2013
    18. Yutaka Chaen, Ryouta Tanaka, and Kiichi Hamamoto, “Optical mode converter using multi-mode interference structure”, Technical Digest of The 18th Microoptics Conference, H8, pp. 63, 29 Oct. 2013
    19. Hirohito Hokazono, Jaio Chen, Miki Tsujino, and Kiichi Hamamoto, “First demonstration of liquid concentration measurement by using silica high-mesa waveguide”, Technical Digest of The 18th Microoptics Conference, H44, pp. 99, 29 Oct. 2013
    20. Jiao Chen, Hirohito Hokazono, Miki Tsujino, Daisuke Nakashima, and Kiichi Hamamoto, “Proposal of multiple slot silica high-mesa waveguide for infrared sensing”, Technical Digest of The 18th Microoptics Conference, H53, pp. 108, 29 Oct. 2013
    21. Miki Tsujino, Hirohito Hokazono, Jiao Chen, and Kiichi Hamamoto, “Optical amplifier assisted cavity ring down spectroscopy (CRDS) method for compact infrared sensing”, Technical Digest of The 18th Microoptics Conference, H57, pp. 112, 29 Oct. 2013
    22. Ryuta Takakura, Makoto Jizodo, Asuka Fujino, Tatsushi Tanaka, and Kiichi Hamamoto, “Optical mode switch configuration for four modes”, Technical Digest of The International Symposium on Extremely Advanced Transmission Technology (EXAT 2013), P06, pp. 103, 7 Nov. 2013 (Sapporo Convention Center, Sapporo)
    23. Ryota Tanaka, Yutaka Chaen, Zhao Zhao, and Kiichi Hamamoto, “Full C-band spacial multi-mode combiner based on multi-mode interference” , Technical Digest of The International Symposium on Extremely Advanced Transmission Technology (EXAT 2013), P13, pp. 110, 7 Nov. 2013 (Sapporo Convention Center, Sapporo)
    24. Tatsushi Tanaka, Makoto Jizodo, Asuka Fujino, Ryuta Takakura, and Kiichi Hamamoto, “Narrow trench electrode for optical mode switch”, Technical Digest of The International Symposium on Extremely Advanced Transmission Technology (EXAT 2013), P14, pp. 111, 7 Nov. 2013 (Sapporo Convention Center, Sapporo)
    25. Kazuhiro Tanabe, Yutaka Chaen, and Kiichi Hamamoto, “Quasi-LP21 mode converter by using simple step-core structure”, Technical Digest of The International Symposium on Extremely Advanced Transmission Technology (EXAT 2013), P17, pp. 114, 7 Nov. 2013 (Sapporo Convention Center, Sapporo)
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      Conference Publications (Domestic)
    1. Makoto Jizodo, Asuka Fujino, and Kiichi Hamamoto, ”Proposal of Optical Spatial Mode Switch”, IEICE Technical Report, Vol. 112, No. 398, OPE2012-163, pp. 181-186, 25th Jan. 2013 (Osaka University, Suita)
    2. Yutaka Chaen, Zhao Zhao, Yuuta Satou, and Kiichi Hamamoto” Multi-Mode Multiplexing Devices Based on MMI (Multi Mode Interference) Structure Optical Waveguide”, IEICE Technical Report, Vol. 112, No. 449, OPE2012-201, pp. 77-80, 1st Mar. 2013 (Tokyo)
    3. Kazuki Ikeda, Nobuyasu Hamamori, and Kiichi Hamamoto, ”Fundamental Research on Wide Optical Band-Pass Filter by Using 1xN Multi-Mode-Interference(MMI)”, IEICE Technical Report, Vol. 112, No. 449, OPE2012-202, pp. 81-84, 1st Mar. 2013 (Tokyo)
    4. Hirohito Hokazono, Daisuke Nakashima, Jaio Chen, Miki Tsujino, Kiichi Hamamoto, ” Electric Field Profile Evaluation at Waveguide Facet by Using Reverse Fourier Transformation of Far-Field Pattern”, Vol. 112, No. 449, OPE2012-203, pp. 85-90, 1st Mar. 2013 (Tokyo)
    5. Jiao Chen, Hirohito Hokazono, Daisuke Nakashima, Yasuaki Hashizume*, Mikitaka Itoh*, and Kiichi Hamamoto, ”Silica High-Mesa Waveguide for Infrared Sensing”, Vol. 112, No. 449, -204, pp. 91-94, 1st Mar. 2013 (Tokyo)
    6. Hirohito Hokazono, Daisuke Nakashima, Jiao Chen, Miki Tsujino, and Kiichi Hamamoto, “Electric field profile evaluation at waveguide facet by using reverse fourier transformation of far-field pattern”, The 60th JSAP (The Japan Society of Applied Physics) Spring Meeting, 2013, 27a-A2-9, Vol. 3, pp.39, 27th Mar. 2013 (Kanagawa)
    7. Jiao Chen, Hirohito Hokazono, Daisuke Nakashima, and Kiichi Hamamoto, “Silica High-Mesa Waveguide for Infrared Sensing”, Extended Abstracts of The 60th Spring Meeting of The Japan Society of Applied Physics and Related Societies, 29a-B4-1, pp. 05-006, 29th Mar. 2013 (Kanagawa)　
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    2012
      Journal Publications
    1. Zhigang Zang*, Keisuke Mukai*, Paolo Navaretti**, Marcus Duelk**, Christian Velez**, and Kiichi Hamamoto*, “Thermal Resistance Reduction in High Power Superluminescent Diodes by Using Active Multi-Mode Interferometer”, Applied Physics Letters, Vol. 100, No. 31, pp. 10801-10804, Jan. 2012
      *Kyushu Universtiy **EXALOS AG
    2. Yasuo Hinokuma*, Yutaka Chaen*, Haisong Jiang*, Takuma Hagio*, Seiki Nakamura*, Akio Tajima**, and Kiichi Hamamoto*, “Single Wavelength Emission by Using Novel Asymmetric Configuration for Active Multi-mode interferometer Laser Diodes”, IEICE Electronics Express (ELEX), Vol. 9, No. 18, pp. 1448-1453, Sep. 2012
      *Kyushu University **NEC Corporation
    3. Daisuke Nakashima, and Kiichi Hamamoto, “Proposal of Novel Strip High-Mesa Waveguide for Infrared Absorption Sensing”, Applied Physics Express (APEX), Vol. 5, pp. 062202_1- 062202_3, Jun. 2012
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      Conference Publications (International)
    1. Yutaka Chaen, Zhao Zhao, Haisong Jiang, and Kiichi Hamamoto, “Full C-Band Spstial Multi-Mode Combiner Based on Multi-Mode Interference”, Technical Digest of 9th International Symposium on Novel Carbon Resource Sciences, P-53, pp. 116, 3rd Nov. 2012
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      Conference Publications (Domestic)
    1. Yasuhiro Hinokuma, Yutaka Chaen, Hisong Jiang, Takaaki Kizu, Takuma Hagio, Seiki Nakamura, Akio Tajima, and Kiichi Hamamoto, “First Single Wavelength Emission (CW@RT) on Active MMI LD”, Extended Abstracts of The 59th Spring Meeting of The Japan Society of Applied Physics and Related Societies, No. 1, 16-a-F3-9, pp. 53, 20th Mar. 2012 (Waseda University, Shinjuku）
    2. Zhao Zhao, Yutaka Chaen, and Kiichi Hamamoto, “Mode Converter by Using MMI(Multi-Mode Interference) for Mode Multiplexing Transmission”, Proceedings of the IEICE General Conference 2012, No.1, C-3-2, pp. 151, 20th Mar. 2012 (Tsushima Campus, Okayama University, Okayama）
    3. Haisong Jiang, Yutaka Chaen, Takuma Hagio, Kazuisao Turuda, Makoto Jizodo、Jing Xu, Christophe Peucheret, and Kiichi Hamamoto, “All-optical flip-flop operation based on asymmetric active-multimode interferometer bi-stable laser diodes”, Proceedings of the IEICE General Conference 2012, No.1, C-3-10, pp. 159, 20th Mar. 2012 (Tsushima Campus, Okayama University, Okayama）
    4. Takaaki Kizu, Yasuhiro Hinokuma, Yutaka Chaen, Hisong Jiang, Takuma Hagio, Akio Tajima, and Kiichi Hamamoto, “First CW Single Wavelength Emission @RT on Active-MMI LD”, Proceedings of the IEICE General Conference 2012, No.1, C-4-15, pp. 266, 21st Mar. 2012 (Tsushima Campus, Okayama University, Okayama）
    5. Makoto Jizodo, Daisuke Nakashima, Kanako Tagawa, and Kiichi Hamamoto, “Si-Wire Waveguide Optical Switch by Using Narrow Trench Electrode”, Proceedings of the IEICE General Conference 2012, No 1, C-2-46, pp.195, 22nd March 2012 (Tsushima Campus)
    6. Yutaka Chaen, Zhao Zhao, Makoto Jizoudou, and Kiichi Hamamoto, “Full C-band Spatial Multi-Mode Combiner Based on Multi-Mode Interference” , Proceedings of the IEICE General Conference 2012, No.1, C-3-89, pp. 238, 23rd March 2012 (Tsushima Campus, Okayama University、Okayama city)
    7. Yasuhiro Hinokuma, Hitoshi Takeshita, Shigeru Nakamura, Tomoyuki Hino, Kiichi Hamamoto, and Akio Tajima, “Fundamental Evaluation on 1x8 Si-Photonics Optical Switch”, Proceedings of the IEICE General Conference 2012, No.1, C-3-42, pp. 60, 22rd March 2012 (Okayama University、Okayama city）
    8. Yasuhiro Hinokuma, Yutaka Chaen, Haison Jiang, Takaaki Kizu, Takuma Hagio, Seiki Nakamura, Akio Tajima, and Kiichi Hamamto, “Single CW wavelength emission by using novel asymmetric active multi-mode interferometer (MMI) LDs”, IEICE Technical Report, Vol. 112, No. 98, LQE2012-16, pp. 13-16, 22nd June 2012 (Minato-ku, Tokyo)
    9. Yuuta Satou, Yutaka Chaen, Zhao Zhao, and Kiichi Hamamoto,”Fundamental Research on Quasi-LP21 Mode Converter Device”, Proceedings of the IEICE Society Conference 2012, No. 1, C-3-15, pp. 132, 11th Sep. 2012 (Toyama University, Toyama)
    10. Hirohito Hokazono*, Daisuke Nakashima*, Jiao Chen*, Miki Tsujino*, Yasuaki Hashizume**, Mikitaka Itoh**, and Kiichi Hamamoto*, “Silica-Based High-Mesa Waveguide for Compact Breath-Sensing System”, Proceedings of the IEICE Society Conference 2012, No. 1, C-3-16, pp. 133, 11th Sep. 2012 (Toyama University, Toyama)
      *Kyushu University **NTT Photonics Laboratories
    11. Makoto Jizodo, Asuka Fujino, and Kiichi Hamamoto, “Proposal of Optical Spatial Mode Switch”, Proceedings of the IEICE Society Conference 2012, No. 1, C-3-22, pp. 133, 12th Sep. 2012 (Toyama University, Toyama)
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    2011
      Journal Publications
    1. Haisong Jiang*, Yutaka Chaen*, Takuma Hagio*, Kazuisao Tsuruda*, Makoto Jizodo*, Shinji Matsuo**, Jing Xu***, Christophe Peucheret***, and Kiichi Hamamoto*, “All Optical Fillip-Flop Operation Based on Asymmetric Active-Multimode Interferometer Bi-stable Laser Diodes”, Optics Express, Vol. 19, No. 26, pp. B119-B124, Nov. 2011
      *Kyushu University **NTT Photonics Laboratories ***DTU Photonik
    2. Takaaki Kakitsuka***, Shinji Matsuo**, Kiichi Hamamoto*, Toru Segawa**, Hiroyuki Suzuki**, and Ryo Takahashi**, “Injection-Locked Flip-Flop Operation of a DBR Laser”, IEEE Photonics Technology Letters, Vol. 23, No. 17, pp. 1261-1263, Sep. 2011
      *Kyushu University **NTT Photonics Laboratories
    3. Haisong Jiang*, Hany Ayad Bastawrous*, Takuma Hagio*, Shinji Matsuo**, and Kiichi Hamamoto*, “Low Hysteresis Threshold Current (39mA) Active Multi-Mode-Interferometer (MMI) Bi-stable Laser Diodes Using　Lateral-Modes Bi-stability”, IEEE Journal of Selected Topics in Quantum Electronics, Vol. 17, No. 5, pp. 1258-1263, Sep. 2011
      *Kyushu University **NTT Photonics Laboratories
    4. Zhigang Zang*, Keisuke Mukai*, Paolo Navaretti**, Marcus Duelk**, Christian Velez**, and Kiichi Hamamoto*, “High Power and Stable High Coupling Efficiency (66%) Superluminescent Light Emitting Diodes by using Active Multi-mode Interferometer”, IEICE Transactions on Electronics, Vol. E94-C, No. 5, pp. 862-864, May 2011
      *Kyushu Universtiy **EXALOS AG
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      Conference Publications (International)
    1. Haisong Jiang*, Yutaka Chaen*, Takuma Hagio*, Kazuisao Tsuruda*, Makoto Jizodo*, Jing Xu**, Christophe Peucheret**, Shinji Matsuo***, and Kiichi Hamamoto*, “High-Speed and Low-Energy Flip-Flop Operation of Asymmetric Active-Multimode Interferometer Bi-Stable Laser Diodes”, Proceedings of 37th European Conference on Optical Communication (ECOC 2011, Geneva, Switzerland), Th.11.LeSaleve.4, 22nd September 2011
      *Kyushu University **DTU Fotonik **NTT Photonics Laboratories
    2. Yasuhiro Hinokuma*, Yutaka Chaen*, a href="./member/07/kyo.html">Haisong Jiang* Takuma Hagio*, Akio Tajima**, and Kiichi Hamamoto*, “First Single Wavelength (CW@RT, SMSR>30dB) Active-MMI LD (Non-Grating) Based on Longitudinal Interference”, Technical Digest of 16th OptoElectronics and Communications Conference (OECC 2011, Kaoshung, Taiwan), PD6, 7th Jul. 2011
      *Kyushu University **NEC System Platform Laboratories
    3. Haisong Jiang*, Yutaka Chaen*, Takuma Hagio*, Kazuisao Tsuruda*, Makoto Jizodo*, Shinji Matsuo***, and Kiichi Hamamoto*, “Single Wavelength (Non-Grating) High-Mesa Asymmetric Active-MMI All Optical Bi-Stable Laser Diodes”, Conference Proceedings of 23rd International Conference on Indium Phosphide and Related Materials, (IPRM 2011, Berlin, Germany), P32, pp. 174-177, 23rd May 2011
      *Kyushu University **NTT Photonics Laboratories
    4. Yutaka Chaen, Zhao Zhao, Haisong Jiang, and Kiichi Hamamoto, “Full C-Band Spatial Multi-Mode Combiner Based on Multi-Mode Interference”, Technical Digest of 17th Microoptics Conference (Sendai, Japan),H-13, 1st Nov 2011
    5. Makoto Jizodo, Haisong Jiang, Kazuisao Tsuruda, Takuma Hagio, Yutaka Chaen, Shinji Matsuo, and Kiichi Hamamoto, “Integrated 4-Bit Active-MMI High-Mesa Bi-Stable Laser Diodes Coupled with Hemispherical Lens Fiber Array”, Technical Digest of 17th Microoptics Conference (Sendai, Japan), H-29, 1st Nov 2011
    6. Daisuke Nakashima, and Kiichi Hamamoto, “Proposal of novel strip high-mesa waveguide for infrared absorption sensing”, Technical Digest of 17th Microoptics Conference (Sendai, Japan), H-60, 1st Nov 2011
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      Conference Publications (Domestic)
    1. Kazuisao Tsuruda, Kiichi Hamamoto,“Fundamental research on multi-mode interference (MMI) phenomenon in photonic crystal for compact optical RAM memory element “, IEICE Technical Report, Vol. 110, No. 395, OPE2010-158, pp. 107-112, 27th Jan. 2011 (Osaka University、Suita)
    2. Makoto Jizodo*, Jiang Haisong*, Kazuisao Tsuruda*, Takuma Hagio*, Yutaka Chaen*, Shinji Matsuo** and Kiichi Hamamoto*,“Preliminary research on hemispherical lens fiber-array coupling with integrated optical random access memory (RAM) elements”, Proceedings of the IEICE General Conference 2011, No. 1, pp. 207, 14th Mar. 2011
      *Kyushu University **NTT Photonics Laboratories
    3. Takuma Hagio*, Haisong Jiang*, Hany Ayad Bastawrous*, Shinji Matsumoto**, and Kiichi Hamamoto*, “Low Hysteresis Threshold Current (39mA) Demonstration on Active Multi-Mode Interferometer Bi-Stable Laser Diodes Using Lateral Bi-Stability”, Proceedings of the IEICE General Conference 2011, c-3-35，p.210，15th Mar. 2011 (Setagaya campus, Tokyo City University, Setagaya, Japan )
      *Kyushu University **NTT Photonics Laboratories
    4. Yutaka Chaen*, Haisong Jiang*, Kazuisao Turuda*, Takuma Hagio*, Makoto Jizodo*, Shinji Matsuo**, and Kiichi Hamamoto*, “Designing of Active Multi-Mode Interferometer Bi-Stable Laser Diodes Using Lateral Bi-Stability”, Proceedings of the IEICE General Conference 2011, c-3-34，p.209，15th Mar. 2011 (Setagaya campus, Tokyo City University, Setagaya, Japan )
      *Kyushu University **NTT Photonics Laboratories
    5. Seiki Nakamura, Yasuhiro Hinokuma and Kiichi Hamamoto, “Fundamental Research on the Relaxation Oscillation Frequency of Active Multi-Mode Interferometer Laser Diode”, Proceedings of the IEICE General Conference 2011, C-3-33, p. 208, 15th Mar 2011 （Setagaya Campus, Tokyo City University, Setagaya, Tokyo, Japan）
    6. Kazuki Ikeda, Nobuyasu Hamamori and Kiichi Hamamoto, “Fundamental research on wide optical band-pass filter by using 1xN multi-mode-interference (MMI) couplers”, Proceedings of the IEICE General Conference 2011, No. 1, pp. 225, 16th Mar. 2011
    7. Yasuhiro Hinokuma, Seiki Nakamura, Takahira Mitomi and Kiichi Hamamoto, “1xN active-MMI LD Design for High SMSR Single Wavelength Emission”, Proceedings of the IEICE General Conference 2011, C-4-19, p. 276, 16th Mar 2011 （Setagaya Campus, Tokyo City University, Setagaya, Tokyo, Japan）
    8. Jiao Chen, and Kiichi Hamamoto, “Fundamental research on scattering loss reduction for high mesa waveguide”, Extended Abstracts of The 58th Spring Meeting of The Japanese Society of Applied Physics and Related Societies, 25a-KS-4, pp. 03-006, 25th Mar. 2011
    9. Kiichi Hamamoto, “Optical random access memory (RAM) element by using active multi-mode-interferometer (MMI), Technical Report of IPDA, IPDA11-03, pp.13-18, 11th May 2011
    10. Daisuke Nakashima, and Kiichi Hamamoto, “Proposal of novel strip high-mesa waveguide for infrared absorption sensing”, Proceedings of the IEICE Society Conference 2011, No. 1, C-3-58, p. 180, 15th Sep. 2011
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    2010
      Award
    1. 2010 Excellent Student Award, 29th Jan 2011, IEEE Fukuoka Section
      Zhigang Zang*, Takahiro Minato*, Paolo Navaretti**, Yasuhiro Hinokuma*, Marcus Duelk**, Christian Velez**, and Kiichi Hamamoto*, "High power(>110mW) superluminescent diodes using active multi-mode interferometer", IEEE Photonics Technology Letters, Vol. 22, No. 10, pp. 721-723, May 2010
      *Kyushu Universtiy **EXALOS AG
    2. Outstanding Paper Award, CSS-12
      Jiao Chen, Intekhab Alam, and Kiichi Hamamoto, "Fundamental research on scattering loss reduction for high mesa waveguide", Proceedings of The 12th Cross Straits Symposium on Materials, Energy, and Environmental Sciences, (CSS-12, Pohang, Korea), MSP-18, pp. 81-82, 24th Nov. 2010
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      Journal Publications
    1. Zhigang Zang*, Takahiro Minato*, Paolo Navaretti**, Yasuhiro Hinokuma*, Marcus Duelk**, Christian Velez**, and Kiichi Hamamoto*, "High power(>110mW) superluminescent diodes using active multi-mode interferometer", IEEE Photonics Technology Letters, Vol. 22, No. 10, pp. 721-723, May 2010
      *Kyushu Universtiy **EXALOS AG
    2. Intekhab Alam, and Kiichi Hamamoto, "Slot waveguide by using double high-mesa structure for optical absorption sensing", Japanese Journal of Applied Physics, Vol. 49, No. 12, pp. 122503-1-9, Dec. 2010
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      Conference Publications (International)
    1. Jiao Chen, Intekhab Alam, and Kiichi Hamamoto, "Fundamental research on scattering loss reduction for high mesa waveguide", Proceedings of The 12th Cross Straits Symposium on Materials, Energy, and Environmental Sciences, (CSS-12, Pohang, Korea), MSP-18, pp. 81-82, 24th Nov. 2010
    2. Haisong Jiang, Hany Ayad Bastawrous, Takuma Hagio, Shinji Matsuo, and Kiichi Hamamoto, "Low hysteresis threshold current (39mA) demonstration using active multi-mode interferometer bi-stable laser diodes", Conference Digest of 22nd IEEE International Semiconductor Laser Conference (ISLC 2010, Kyoto, Japan), P30, pp. 138-139, 28th Spe. 2010
    3. Zhigang Zang, Keisuke Mukai, Paolo Navaretti, Marcus Duelk, Christian Velez, and Kiichi Hamamoto, "Demonstration of Stable and High Coupling Efficiency (66%) Active Multi-mode Interferometer Superluminescent Light Emitting Diodes", Technical Digest of 15th OptoElectronics and Communications Conference (OECC 2010, Sapporo, Japan), 6D2-3, pp. 62-63, Jul. 2010
    4. Hany Ayad Bastawrous*, Haisong Jiang*, Yuichiro Tahara*, Shinji Matsuo**, and Kiichi Hamamoto*, "Extremely wide and uniform hysteresis windows (32mA) for integrated optical RAM using novel active MMI", Technical Digest of Optical Fiber Communication Conference (OFC 2010, San Diego, USA),JWA34, 24th March 2010
      * Kyushu University ** NTT Photonics Laboratories
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      Conference Publications (Domestic)
    1. Jiao Chen, Intekhab Alam, Kiichi Hamamoto, "Fundamental research on scattering loss reduction for high mesa waveguide", IEICE technical report, Vol. 110, No. 257, pp. 55-60, 28th Oct. 2010
    2. Yasuhiro Hinokuma, Takahira MITOMI, and Kiichi Hamamoto, "Single wavelength emission using 1xN active multi-mode-interferometer laser diodes", IEICE technical report, Vol. 110, No. 257, pp. 143-148, 29th Oct. 2010
    3. Zhigang Zang, Keisuke MUKAI, Paolo NAVARETTI, Marcus DUELK, Christian VELEZ, and Kiichi Hamamoto, "High Power Superluminescent Light Emitting Diodes by Using Active Multi-mode Interferometer", IEICE technical report, Vol. 110, No. 257, pp. 163-168, 29th Oct. 2010
    4. Haisong Jiang, Hany Ayad Bastawrous, Takuma Hagio, Shinji Matsuo, and Kiichi Hamamoto, "Extremely wide hysteresis window (94mA) using partially saturable-absorber active MMI bi-stable laser diodes", Extended Abstracts of The 71st Autumn Meeting of The Japan Society of Applied Physics and Related Societies, 16p-H-17, pp. 05-016, 16th Sep. 2010
    5. Daisuke Nakashima, and Kiichi Hamamoto, "Preliminary research on loss-evaluation for multi-mode waveguide using Fabry-Perot resonance technique", Extended Abstracts of The 71st Autumn Meeting of The Japan Society of Applied Physics and Related Societies, 14a-NK-10, pp. 03-046, 14th Sep. 2010
    6. Zhigang Zang, Keisuke Mukai, Paolo Navaretti, Marcus Duelk, Christian Velez, and Kiichi Hamamoto, "Stable and High Coupling Efficiency (>60%) Active Multi-mode Interferometer Superluminescent Light Emitting Diodes using Hemi-spherical Lens Single-mode Fiber", Proceedings of the IEICE Society Conference 2010, No. 1, C-4-16, pp. 206, 15th Sep. 2010
    7. (Invited) Haisong Jiang, Hany Ayad Bastawrous, Takuma Hagio, Shinji Matsuo, and Kiichi Hamamoto, "Wide hysteresis active-MMI bi-stable laser diode using different lateral modes", Proceedings of the IEICE Society Conference 2010, No. 1, C-4-11, pp. 201, 15th Sep. 2010
    8. Yasuhiro Hinokuma, Takahira Mitomi, and Kiichi Hamamoto, "First single wavelength oscillation by using 1xN active multi-mode interferometer laser diode", Proceedings of the IEICE Society Conference 2010, No. 1, C-4-9, pp. 199, 14th Sep. 2010
    9. Yasuhiro Hinokuma, Takahira Mitomi, Zhipeng Yuan, Tomoaki Fujita, and Kiichi Hamamoto, "Fundamental research on single wavelength oscillation using 1xN active-MMI LD", Extended Abstracts of The 57th Spring Meeting of The Japan Society of Applied Physics and Related Societies, 19p-E-16, pp. 05-027, 19th Mar. 2010
    10. Keisuke Mukai, Zhigang Zang*, Paolo Navaretti**, Takahiro Minato*, Yasuhiro Hinokuma*, Marcus Duelk**, Christian Velez**, and Kiichi Hamamoto*, "High power superluminescent light emitting diode using active multi-mode interferometer", Proceedings of the IEICE General Conference 2010, No. 1, C-4-24, pp. 275, 2nd Mar. 2010
      *Kyushu Universtiy **EXALOS AG
    11. Haisong Jiang*, Hany Ayad Bastawrous*, Yuichiro Tahara*, Shinji Matsuo**, and Kiichi Hamamoto*, "Demonstration of wide hysteresis window by using different lateral modes based on active-MMI bi-stable laser diode", Proceedings of the IEICE General Conference 2010, No. 1, C-4-9, pp. 260, 17th Mar. 2010
      * Kyushu University ** NTT Photonics Laboratories
    12. Nobuyasu Hamamori, Zhipeng Yuan, and Kiichi Hamamoto, "C-3-43 Fundamental research on optical band-pass filter by using multi-mode interference couplers", Proceedings of the IEICE General Conference 2010, No. 1, pp. 216, 18th Mar. 2010
    13. Yuichiro Tahara*, Hany Ayad Bastawrous*, Haisong Jiang*, Shinji Matsuo** and Kiichi Hamamoto*, "Fundamental research on dense integration of memory elements for optical random access memory (RAM) by using lens coupling with fiber-array", IEICE Technical Report, Vol. 109, No. 402, OPE2009-192, pp. 101-106, 29th January 2010 (Kyoto University, Kyoto, Japan)
      * Kyushu University ** NTT Photonics Laboratories
    14. Haisong Jiang*, Hany Ayad Bastawrous*, Yuichiro Tahara*, Shinji Matsuo** and Kiichi Hamamoto*, "Integrated 4-bit optical memory elements based on active multi-mode-interferometer (MM) bi-stable laser diodes with common and low operation current (55mA)", Proceedings of Integrated Photonic Devices and its Applications, IPDA10-P03, pp.37-38, 4th February 2010 (Hotel Hakone Academy, Hakone, Japan)
      * Kyushu University ** NTT Photonics Laboratories
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