Rchr

J-GLOBAL ID：200901051837042900 Update date: Jan. 31, 2024

Kokubun Yasuo

コクブンヤスオ | Kokubun Yasuo

Affiliation and department：
Job title： Executive Advisor to the President

Research field (1)： Optical engineering and photonics

Research theme for competitive and other funds (30)：

2021 - 2025 Development of cryogenic ultralow-voltage optical modulator for optical interconnection for superconducting quantum computing
2021 - 2024 Development of ultra-low power consumption semiconductor optical modulator integrated with antenna for next-generation radio-over-fiber systems
2018 - 2021 Ultralow-voltage optical modulator for optical interconnection of superconductor integrated circuits
2016 - 2018 Multi-dimensional multi-level mode modulation with ultra-high spectral efficiency using higher order degenerate modes in optical fiber
2015 - 2018 Study on all-optical binary logic processor with ultra-low threshold for digital photonics

2015 - 2018 Development of Semiconductor Microring Resonator-Based Polarization Switch

2012 - 2015 Microring Resonator Loaded Mach-Zehnder Optical Path Switch for Ultralow Power Consumption and Multiple-Wavelength Operation

2008 - 2012 Semiconductor microring processor using wavelength channel control

2009 - 2011 Development of Low-Voltage Semiconductor Mach-Zehnder modulator with single Microring resonator

2008 - 2008 波長チャネルと非線形相互変調効果を用いた半導体マイクロリング光信号処理回路の研究

2005 - 2008 Wavelength Selective Switch and Wavelength Label Coding Circuits Using Microring Resonators

2005 - 2008 新世代光通信へのイノベーション-革新的な光デバイスを基点として-

2002 - 2006 Photonic Integrated Circuits for High Speed Photonic Networks-Challenges for Large Scale Photonic Integration-

2004 - 2005 study on nonblocking wavelength switch using microring resonators

2000 - 2004 波長集積・操作フォトニクス -光スペクトル資源の極限利用に向けて-

2001 - 2003 積層マイクロリング共振器を用いた波長選択性デバイス

1999 - 2001 3次元立体集積化光デバイスおよび光集積回路網の研究

1998 - 2000 Study on ultra-stable lightwave circuits and precise trimming technique of optical path length

1998 - 2000 Ultra-low threshold and spontaneous emission control in semiconductor microdisk lasers

1999 - 1999 波長集積超高密光エレクトロニクスに関する企画調査研究

1996 - 1997 Study on ultra-stable Iightwave circuits without temperature dependence

1993 - 1994 Study of Athermal Waveguides for Temperature Independent Lightwave Circuit

1991 - 1993 超高速および超多重光伝送・光ネットワーク

1991 - 1991 超高速および超多重光伝送・光ネットワ-ク

1990 - 1991 Study on monolithic integration of thin film functional optical devices and optical wave guides

1988 - 1989 Study on novel integrated optics based on ARROW waveguide

1987 - 1987 光波センシング用単-モード・単一偏波ARROW型光集積回路

1986 - 1987 Detecting quence of superconducting magnet by optical fiber

1986 - 1986 干渉閉じ込め型単一モード光導波路の基礎研究

1981 - 1981 波長1.6μm帯分布帰還型GaInAsP/InP半導体レーザ

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Papers (360)：

Masaharu Ohashi, Shoichiro Matsuo, Tetsuya Hayashi, Katsunori Imamura, Yasuo Kokubun, Masanori Koshiba, Takayoshi Mori, Kazuhide Nakajima, Masataka Nakazawa, Kunimasa Saitoh, et al. Optical Fibers for Space-Division Multiplexing. Springer Series in Optical Sciences. 2022. 236. 39-170
Naoki Kobayashi, Yusaku Kawamura, Ryosuke Aoki, Yasuo Kokubun. Nonlinear model analysis of all-optical flip-flop and inverter operations of microring laser. Japanese Journal of Applied Physics. 2018. 57. 3
Tomoki Hirayama, Keita Suzuki, Yasuo Kokubun, Taro Arakawa. Proposal of quantum well polarization modulator based on double microring resonator for stokes vector modulation. 22nd Microoptics Conference, MOC 2017. 2018. 2017-. 294-295
Yasuo Kokubun. 50 Years of fibers and integrated optics. 22nd Microoptics Conference, MOC 2017. 2018. 2017-. 8-9
Yuki Yabushita, Hiroki Takazawa, Yasuo Kokubun, Taro Arakawa. 32-Gbps modulation of single silicon microring resonator-loaded Mach-Zehnder modulator. 22nd Microoptics Conference, MOC 2017. 2018. 2017-. 40-41

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MISC (61)：

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Patents (60)：

Coupled System Multi-Core Fiber, Coupling Mode Multiplexer and Demultiplexer, System for Transmission Using Multi-Core Fiber and Method for Transmission Using Multi-Core Fiber
マルチコアファイバおよびマルチコアファイバのコアの配置方法(US出願)
モード合分波器
マルチコアファイバおよびマルチコアファイバのコアの配置方法(CN出願)
マルチコアファイバおよびマルチコアファイバのコアの配置方法(EPC出願)

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Books (15)：

Lightwave Engineering
CRC Press 2012 ISBN:9781420046489
"Series and parallel coupled add/drop filters and FSR extension," in Photonic Microresonator Research and Applications, Chapter 3
Springer 2010 ISBN:9781441917
Encyclopedic Handbook of Integrated Optics
CRC Press (Taylor & Francis Group) 2005
フォトニック結晶技術の新展開-産業への動向-,第19章「高屈折率差光導波路と部品」
シーエムシー出版 2005
光波光学
共立出版 1999

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Lectures and oral presentations (43)：

数モードファイバ用テーパ-結合逐次モード遷移型モード合分波器の設計と製作
(電子情報通信学会光通信インフラの飛躍的高度化に関する研究専門委員会(EXAT研究会) 2014)
”空間多重・モード多重ファイバ用入出力技術” BCI-1-5
(2014年電子情報通信学会総合大会シンポジウム 2014)
”空間多重・モード多重による超大容量光通信”(招待講演), IPDA13-20,(予稿集pp.43-50)
(電子情報通信学会集積光デバイスと応用技術時限研究会 2014)
光通信デバイス研究の歩みと最先端の研究について (招待講演)
(電子情報通信学会光エレクトロニクス研究会(第2種研究会) 2012)
空間多重/モード多重伝送用マルチコアファイバの研究開発動向 (招待講演)
(第59回応用物理学関係連合講演会 2012)

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Education (3)：

- 1980 Tokyo Institute of Technology Graduate School, Division of Integrated Science and Engineering
- 1977 Tokyo Institute of Technology Graduate School, Division of Science and Engineering
- 1975 Yokohama National University Faculty of Engineering

Professional career (3)：

Doctor of Engineering (Tokyo Institute of Technology)
Master of Engineering (Tokyo Institute of Technology)
Bachelor of Engineering (Yokohama)

Work history (11)：

2022/04 - 現在 Institute of Technologists President, Professor
2021/09 - 現在 Institute of Technologists Executive Advisor to the President
2021/04 - 2021/08 Chubu University Executive Advisor to the President/Professor
2018/04 - 2021/03 Chubu University Vice President, Professor
2001/04 - 2018/03 Yokohama National University Faculty of Engineering Professor

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Committee career (31)：

2008/10 - 現在日本学術会議連携会員
1987/05 - 現在電子情報通信学会論文誌査読委員会委員
1984/01 - 現在応用物理学会微小光学研究グループ実行委員
2010/04 - 2012/03 光通信インフラの飛躍的な高度化に関する時限研究専門委員会委員
2006/04 - 2009/03 神奈川工業技術開発大賞選考委員会委員

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Awards (15)：

2019/09 - The Institute of Electronics, Information, and Communication Engineers, Electronics Society ELEX Best Paper Award Demonstration of true-eigenmode propagation in few-mode fibers by selective LP mode excitation and near-field observation
2018/03 - The Institute of Electronics, Information, and Communication Engineers Distinguished Educational Practitioners Award Contribution to education of researchers and engineers in photonics fields
2015/12/17 - 電子情報通信学会電子情報通信学会2015年光通信システム研究会論文賞 3モードファイバの近視野像偏光成分からの完全モード分析法
2010/09/15 - ELEX Best Paper Award
2010/01/01 - IEEE Fellow Elevation : Citation: for contributions to integrated photonic devices,

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Association Membership(s) (4)：

Optical Sosicety of America , IEEE , THE JAPAN SOCIETY OF APPLIED PHYSICS , THE INSTITUTE OF ELECTRONICS, INFORMATION AND COMMUNICATION ENGINEERS

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