Updated on 2024/10/08

写真a

 
WATANABE Toshio
 
Organization
Research Field in Engineering, Science and Engineering Area Graduate School of Science and Engineering (Engineering) Department of Engineering Electrical and Electronics Engineering Program Associate Professor
Title
Associate Professor

Degree

  • 博士(工学) ( 2001.2   東京工業大学 )

Research Interests

  • Optical Switching

  • Lightwave Engineering

  • Photonic Network System

Education

  • Tokyo Institute of Technology

    1990.4 - 1992.3

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    Country: Japan

Research History

  • Kagoshima University   Research Field in Engineering, Science and Engineering Area Graduate School of Science and Engineering (Engineering) Department of Engineering Electrical and Electronics Engineering Program   Associate Professor

    2020.4

  • Kagoshima University   Research Field in Engineering, Science and Engineering Area Graduate School of Science and Engineering (Engineering) Electrical and Electronics Engineering Course   Associate Professor

    2016.1 - 2020.3

  • Yokohama National University

    2010.4 - 2015.9

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    Country:Japan

  • Meiji University

    2007.10 - 2010.3

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    Country:Japan

Professional Memberships

  • Optica, formerly The Optical Society

    2017.10

  • 電子情報通信学会

    2011.7

  • The Institute of Electrical and Electronics Engineers

    1997.7

  • 応用物理学会

    1993.6

  • 日本物理学会

    1991.8

Committee Memberships

  • 電子情報通信学会   光エレクトロニクス研究専門委員会 専門委員  

    2019.6 - 2021.6   

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    Committee type:Academic society

  • 電子情報通信学会   英文論文誌C編集委員会 英文論文誌編集幹事  

    2019.6 - 2021.6   

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    Committee type:Academic society

  • 電子情報通信学会   光ファイバ応用技術研究専門委員会 専門委員  

    2017.9 - 2021.6   

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    Committee type:Academic society

  • 応用物理学会   講演会企画運営委員  

    2016.5 - 2018.4   

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    Committee type:Academic society

Qualification acquired

  • Hazardous Material Handler (first kind)

  • Organic Solvent Work Chief Person

  • Specified Chemical Substances Work Chief

 

Papers

  • M. Kawasako, T. Watanabe, T. Nagayama, S. Fukushima .  Scalability of multi-stage nested Mach-Zehnder interferometer optical switch with phase generating couplers .  Advances in Science, Technology and Engineering Systems Journal7 ( 4 ) 140 - 146   2022.8Scalability of multi-stage nested Mach-Zehnder interferometer optical switch with phase generating couplersReviewed

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.25046/aj070418

  • D. Kiritoshi, T. Watanabe, T. Nagayama, S. Fukushima .  Coupling Characteristics of a Mode Multi/Demultiplexer with a Vertically Stacked Asymmetric Directional Coupler .  OECC/PSC 2022 - 27th OptoElectronics and Communications Conference/International Conference on Photonics in Switching and Computing 2022   2022.7Reviewed

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    Language:English   Publishing type:Research paper (international conference proceedings)   Publisher:OECC/PSC 2022 - 27th OptoElectronics and Communications Conference/International Conference on Photonics in Switching and Computing 2022  

    We show the coupling characteristics of a mode multi/demultiplexer (MUX/DEMUX) with a vertically stacked asymmetric directional coupler. Designed multilayer 4-mode MUX/DEMUX has higher coupling efficiency than the conventional in-plane mode MUX/DEMUX.

    DOI: 10.23919/OECC/PSC53152.2022.9849938

    Scopus

  • M. Kawasako, T. Watanabe, T. Nagayama, S. Fukushima .  4-Stage Mach-Zehnder Interferometer Optical Switch with Phase Generating Couplers .  MOC 2021 - 26th Microoptics Conference   2021.9Reviewed

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    Language:English   Publishing type:Research paper (international conference proceedings)   Publisher:26th Microoptics Conference, MOC 2021  

    We examine the characteristics of a 4-stage nested Mach-Zehnder interferometer optical switch with phase generating couplers, and demonstrate that crosstalk is suppressed to less than -40 dB over 200nm wavelength range from 1450 to 1650 nm by choosing six ports among 16 output ports.

    DOI: 10.23919/MOC52031.2021.9598066

    Scopus

  • K. Sainohira, T. Watanabe, T. Nagayama, S. Fukushima .  Truncated spot size converters for silicon photonic wire waveguides .  OECC 2021 - 26th Optoelectronics and Communications Conference   2021.7Reviewed

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    Language:English   Publishing type:Research paper (international conference proceedings)   Publisher:Optics InfoBase Conference Papers  

    We examined light propagation along the spot size converter of silicon photonic wire waveguides, and show there are two maxima in coupling efficiency. An optimal design was given in terms of compactness and high efficiency by changing its dimension and shape.

    Scopus

  • K. Tasaki, M. Tokumaru, T. Watanabe, T. Nagayama, S. Fukushima .  Nested Mach-Zehnder interferometer optical switch with phase generating couplers .  Japanese Journal of Applied Physics59 ( SO ) SOOB04   2020.8Reviewed

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    Language:English   Publishing type:Research paper (scientific journal)   Publisher:Japanese Journal of Applied Physics  

    DOI: 10.35848/1347-4065/ab8f09

    Scopus

  • T. Watanabe, K. Tasaki, T. Nagayama, S. Fukushima .  Nested Mach-Zehnder Interferometer Optical Switch with Low Crosstalk .  MOC 2019 - 24th Microoptics Conference   234 - 235   2019.11Reviewed

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    Language:English   Publishing type:Research paper (international conference proceedings)   Publisher:MOC 2019 - 24th Microoptics Conference  

    DOI: 10.23919/MOC46630.2019.8982851

    Scopus

  • S. Shimada, T. Watanabe, T. Nagayama, S. Fukushima .  Design of arrayed-waveguide optical switch employing window function for crosstalk reduction .  Japanese Journal of Applied Physics58 ( SJ ) SJJB03   2019.8Reviewed

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    Language:English   Publishing type:Research paper (scientific journal)   Publisher:Japanese Journal of Applied Physics  

    DOI: 10.7567/1347-4065/ab27b1

    Scopus

  • W. Yamauchi, T. Watanabe, T. Nagayama, S. Fukushima .  Joint-Switching Architecture Utilizing Waveguide-Based Multicast Switch in CDC-ROADM for Multi-Core Fiber Networks .  OECC/PSC 2019 - 24th OptoElectronics and Communications Conference/International Conference Photonics in Switching and Computing 2019   2019.7Reviewed

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    Language:English   Publishing type:Research paper (international conference proceedings)   Publisher:OECC/PSC 2019 - 24th OptoElectronics and Communications Conference/International Conference Photonics in Switching and Computing 2019  

    DOI: 10.23919/PS.2019.8817853

    Scopus

  • T. Watanabe, S. Sohma, S. Kamei .  Low-loss wavelength routing optical switch consisting of small matrix switch and cyclic arrayed-waveguide gratings for colorless add/drop .  Japanese Journal of Applied Physics53 ( 8S2 ) 08MB02   2014.7Low-loss wavelength routing optical switch consisting of small matrix switch and cyclic arrayed-waveguide gratings for colorless add/dropReviewed

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    Authorship:Lead author   Language:English   Publishing type:Research paper (scientific journal)  

  • 渡辺 俊夫 .  電気光学および熱光学効果型光制御機能を有するポリマー導波路に関する研究 .      2001.2電気光学および熱光学効果型光制御機能を有するポリマー導波路に関する研究

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    Language:Japanese   Publishing type:Doctoral thesis  

  • T. Watanabe, F. Kano, S. Kuwano, H. Suzuki, M. Koga .  Scale expansion of transparent photonic transport network based on distributed Raman amplification .  IEEE Photonics Technology Letters12 ( 10 ) 1420 - 1422   2000.10Scale expansion of transparent photonic transport network based on distributed Raman amplificationReviewed

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    Authorship:Lead author   Language:English   Publishing type:Research paper (scientific journal)  

  • T. Watanabe, N. Sakaida, H. Yasaka, F. Kano, M. Koga .  Transmission performance of chirp-controlled signal using semiconductor optical amplifier .  Journal of Lightwave Technology18 ( 8 ) 1069 - 1077   2000.8Transmission performance of chirp-controlled signal using semiconductor optical amplifierReviewed

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    Authorship:Lead author   Language:English   Publishing type:Research paper (scientific journal)  

  • T. Watanabe, S. Hayashida, S. Imamura .  Vibrational overtone absorption of side chain in silicone at 1.55 um wavelength band .  Japanese Journal of Applied Physics38 ( 3B ) L318 - L319   1999.3Vibrational overtone absorption of side chain in silicone at 1.55 um wavelength bandReviewed

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    Authorship:Lead author   Language:English   Publishing type:Research paper (scientific journal)  

  • T. Watanabe, H. Yasaka, N. Sakaida, M. Koga .  Waveform shaping of chirp-controlled signal by semiconductor optical amplifier using Mach-Zehnder frequency discriminator .  IEEE Photonics Technology Letters10 ( 10 ) 1422 - 1424   1998.10Waveform shaping of chirp-controlled signal by semiconductor optical amplifier using Mach-Zehnder frequency discriminatorReviewed

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    Authorship:Lead author   Language:English   Publishing type:Research paper (scientific journal)  

  • T. Watanabe, N. Sakaida, H. Yasaka, M. Koga .  Chirp control of optical signal using phase modulation in semiconductor optical amplifier .  IEEE Photonics Technology Letters10 ( 7 ) 1027 - 1029   1998.7Chirp control of optical signal using phase modulation in semiconductor optical amplifierReviewed

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    Authorship:Lead author   Language:English   Publishing type:Research paper (scientific journal)  

  • T. Watanabe, N. Ooba, S. Hayashida, T. Kurihara, S. Imamura .  Polymeric optical waveguide circuits formed using silicone resin .  Journal of Lightwave Technology16 ( 6 ) 1049 - 1055   1998.6Polymeric optical waveguide circuits formed using silicone resinReviewed

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    Authorship:Lead author   Language:English   Publishing type:Research paper (scientific journal)  

  • T. Watanabe, N. Ooba, Y. Hida, M. Hikita .  Influence of humidity on refractive index of polymers for optical waveguide and its temperature dependence .  Applied Physics Letters72 ( 13 ) 1533 - 1535   1998.3Influence of humidity on refractive index of polymers for optical waveguide and its temperature dependenceReviewed

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    Authorship:Lead author   Language:English   Publishing type:Research paper (scientific journal)  

  • T. Watanabe, M. Hikita, M. Amano, Y. Shuto, S. Tomaru .  Vertically stacked coupler and serially grafted waveguide: Hybrid waveguide structures formed using an electro-optic polymer .  Journal of Applied Physics83 ( 2 ) 639 - 649   1998.1Vertically stacked coupler and serially grafted waveguide: Hybrid waveguide structures formed using an electro-optic polymerReviewed

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    Authorship:Lead author   Language:English   Publishing type:Research paper (scientific journal)  

  • T. Watanabe, N. Ooba, Y. Hida, S. Hayashida, T. Kurihara, S. Imamura .  Digital thermooptic switch formed using silicone resin waveguides .  Japanese Journal of Applied Physics36 ( 12B ) L1672 - L1674   1997.12Digital thermooptic switch formed using silicone resin waveguidesReviewed

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    Authorship:Lead author   Language:English   Publishing type:Research paper (scientific journal)  

  • T. Watanabe, Y. Inoue, A. Kaneko, N. Ooba, T. Kurihara .  Polymeric arrayed-waveguide grating multiplexer with a wide tuning range .  Electronics Letters33 ( 18 ) 1547 - 1548   1997.8Polymeric arrayed-waveguide grating multiplexer with a wide tuning rangeReviewed

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    Authorship:Lead author   Language:English   Publishing type:Research paper (scientific journal)  

  • T. Watanabe, M. Amano, S. Tomaru .  Second-order optical nonlinearities of an electrooptic polymer containing a thiazole ring and its use in single-mode waveguide fabrication .  Japanese Journal of Applied Physics33 ( 12A ) L1683 - L1685   1994.12Second-order optical nonlinearities of an electrooptic polymer containing a thiazole ring and its use in single-mode waveguide fabricationReviewed

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    Authorship:Lead author   Language:English   Publishing type:Research paper (scientific journal)  

  • T. Watanabe, M. Amano, M. Hikita, Y. Shuto, S. Tomaru .  Novel 'serially grafted' connection between functional and passive polymer waveguides .  Applied Physics Letters65 ( 10 ) 1205 - 1207   1994.9Novel 'serially grafted' connection between functional and passive polymer waveguidesReviewed

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    Authorship:Lead author   Language:English   Publishing type:Research paper (scientific journal)  

  • T. Watanabe, T. Kubo, K. Ishikawa, H. Takezoe, A. Fukuda .  Multiphonon Raman scattering enhanced by resonance with band gap Ag luminescence state in trans-polyacetylene .  Japanese Journal of Applied Physics33 ( 1A ) L48 - L51   1994.1Multiphonon Raman scattering enhanced by resonance with band gap Ag luminescence state in trans-polyacetyleneReviewed

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    Authorship:Lead author   Language:English   Publishing type:Research paper (scientific journal)  

  • T. Watanabe, T. Kubo, H. Takezoe, A. Fukuda .  Luminescence and multiphonon Raman scattering excited at exciton-forming vibronic absorption subbands in trans-polyacetylene .  Japanese Journal of Applied Physics31 ( 2A ) L102 - L105   1992.2Luminescence and multiphonon Raman scattering excited at exciton-forming vibronic absorption subbands in trans-polyacetyleneReviewed

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    Authorship:Lead author   Language:English   Publishing type:Research paper (scientific journal)  

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Presentations

  • T. Watanabe, S. Taguchi, T. Nagayama, S. Fukushima   Rising time reduction by cascading Mach-Zehnder interferometer optical switches   International conference

    29th Microoptics Conference (MOC 2024)  2024.10 

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    Event date: 2024.9 - 2024.10

    Language:English   Presentation type:Poster presentation  

    Venue:Kaohsiung  

  • 山本啓太, 渡邉俊夫, 永山務, 福島誠治   不等間隔のアレイ導波路を用いた光スイッチ  

    第77回電気・情報関係学会九州支部連合大会  2024.9 

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    Event date: 2024.9

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:鹿児島大学   Country:Japan  

  • 井芹奎士郎, 稲光遥也, 渡邉俊夫, 永山務, 福島誠治   中空コアフォトニックバンドギャップファイバの群遅延特性  

    電子情報通信学会OCS/OFT/CMN/BCT研究会  2023.11 

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    Event date: 2023.11

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:京都  

  • 鍵本力, 渡邉俊夫, 永山務, 福島誠治   積層型非対称方向性結合器を用いたモード合分波器  

    第76回電気・情報関係学会九州支部連合大会  2023.9 

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    Event date: 2023.9

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:崇城大学   Country:Japan  

  • 小田昇輝, 渡邉俊夫, 永山務, 福島誠治   マルチモード伝送可能な屈折率導波型フォトニック結晶ファイバ  

    第76回電気・情報関係学会九州支部連合大会  2023.9 

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    Event date: 2023.9

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:崇城大学   Country:Japan  

  • 井芹奎士郎, 渡邉俊夫, 永山務, 福島誠治   中空コア光ファイバの群遅延特性  

    第76回電気・情報関係学会九州支部連合大会  2023.9 

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    Event date: 2023.9

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:崇城大学   Country:Japan  

  • 稲光遥也, 渡邉俊夫, 永山務, 福島誠治   屈折率を制御したフォトニック結晶ファイバの特性  

    第76回電気・情報関係学会九州支部連合大会  2023.9 

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    Event date: 2023.9

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:崇城大学   Country:Japan  

  • 永山諒, 渡邉俊夫, 永山務, 福島誠治   冗長性を持つ3段Clos光スイッチの回路構成  

    第76回電気・情報関係学会九州支部連合大会  2023.9 

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    Event date: 2023.9

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:崇城大学   Country:Japan  

  • 樋渡裕次郎, 渡邉俊夫, 永山務, 福島誠治   スラブ導波路を交差させたアレイ導波路回折格子の回路構成  

    第75回電気・情報関係学会九州支部連合大会  2022.9 

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    Event date: 2022.9

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:オンライン   Country:Japan  

  • 郡山博樹, 渡邉俊夫, 永山務, 福島誠治   光回路を用いたベクトル-行列演算器におけるクロストークの影響  

    令和3年度電気学会九州支部沖縄支所講演会  2021.12  電気学会九州支部

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    Event date: 2021.12

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:オンライン  

  • 川迫雅之, 渡邉俊夫, 永山務, 福島誠治   複合干渉計型光スイッチの多ポート化の構成  

    2021.11  電子情報通信学会

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    Event date: 2021.11

    Language:Japanese   Presentation type:Poster presentation  

    Venue:オンライン  

  • 下山優人, 渡邉俊夫, 永山務, 福島誠治   光パワー分配比がカイザー窓関数にしたがうアレイ導波路型光スイッチの設計  

    第74回電気・情報関係学会九州支部連合大会  2021.9 

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    Event date: 2021.9

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:オンライン   Country:Japan  

  • 渡邉俊夫   光通信ネットワーク用光スイッチの設計技術   Invited

    レーザー学会学術講演会第41回年次大会  2021.1  レーザー学会

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    Event date: 2021.1

    Language:Japanese  

    Venue:オンライン  

  • 池田捷記, 渡邉俊夫, 永山務, 福島誠治   分布ラマン増幅を用いた光ファイバ伝送の雑音特性  

    令和2年度電気学会九州支部沖縄支所講演会  2020.12  電気学会九州支部

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    Event date: 2020.12

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:オンライン  

  • 切通大智, 渡邉俊夫, 永山務, 福島誠治   同一材料を用いた位相・光軸角度が波長無依存の1/4波長板  

    第73回電気・情報関係学会九州支部連合大会  2020.9 

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    Event date: 2020.9

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:オンライン   Country:Japan  

  • 田崎公平, 渡邉俊夫, 永山務, 福島誠治   位相生成カプラを線対称に配置した複合干渉計型光スイッチ  

    第67回応用物理学会春季学術講演会 

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    Event date: 2020.3

    Language:Japanese   Presentation type:Poster presentation  

  • 渡邉俊夫   光ネットワークの進化の鍵を握る光デバイス研究の最新動向   Invited

    電子情報通信学会CS/OCS研究会  2020.1 

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    Event date: 2020.1

    Language:Japanese   Presentation type:Oral presentation (invited, special)  

    Venue:別府  

  • 齊之平晃樹, 渡邉俊夫, 永山務, 福島誠治   テーパ型光導波路スポットサイズコンバータの光パワー伝播特性  

    第72回電気・情報関係学会九州支部連合大会  2019.9 

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    Event date: 2019.9

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:九州工業大学  

  • 渡邉俊夫, 嶋田周平, 永山務, 福島誠治   アレイ光導波路型光スイッチにおけるクロストークの計算方法  

    第80回応用物理学会秋季学術講演会  2019.9 

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    Event date: 2019.9

    Language:Japanese   Presentation type:Poster presentation  

    Venue:北海道大学  

  • 渡邉俊夫, 山内航, 永山務, 福島誠治   マルチコアファイバ対応CDC-ROADMのジョイントスイッチ構成  

    電子情報通信学会ソサイエティ大会  2019.9 

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    Event date: 2019.9

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:大阪大学  

  • 嶋田周平, 渡邉俊夫, 永山務, 福島誠治   窓関数を用いたアレイ光導波路型光スイッチのクロストーク低減  

    第66回応用物理学会春季学術講演会  2019.3 

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    Event date: 2019.3

    Language:Japanese   Presentation type:Poster presentation  

    Venue:東京工業大学  

  • S. Shimada, T. Watanabe, T. Nagayama, S. Fukushima   Design of arrayed-waveguide optical switch employing window function   International conference

    23rd Microoptics Conference (MOC 2018)  2018.10 

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    Event date: 2018.10

    Language:English   Presentation type:Poster presentation  

    Venue:Taipei  

  • 田崎公平, 渡邉俊夫, 永山務, 福島誠治   複合マッハ-ツェンダ干渉計型1×N光スイッチのクロストーク特性  

    第71回電気・情報関係学会九州支部連合大会  2018.9 

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    Event date: 2018.9

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:大分大学  

  • W. Yamauchi, T. Watanabe, T. Nagayama, S. Fukushima   Temporal response difference between thermo-optic switch and variable optical attenuator  

    電気情報通信学会光エレクトロニクス研究会 

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    Event date: 2017.12

    Language:English   Presentation type:Poster presentation  

    Venue:宮古島  

  • S. Shimada, T. Watanabe, T. Nagayama, S. Fukushima   Arrayed-waveguide optical switch with low crosstalk  

    電気情報通信学会光エレクトロニクス研究会 

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    Event date: 2017.12

    Language:English   Presentation type:Poster presentation  

    Venue:宮古島  

  • 嶋田周平, 渡邉俊夫, 永山務, 福島誠治   アレイ光導波路を用いた光スイッチのクロストーク低減  

    第70回電気・情報関係学会九州支部連合大会  2017.9 

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    Event date: 2017.9

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:琉球大学  

  • 山内航, 渡邉俊夫, 永山務, 福島誠治   熱光学効果を用いた可変光減衰器の時間応答  

    第70回電気・情報関係学会九州支部連合大会  2017.9 

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    Event date: 2017.9

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:琉球大学  

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Awards

  • OECC/PS 2016 Best Paper Award

    2016.7   21st Optoelectronics and Communications Conference / International Conference on Photonics in Switching 2016  

    T. Watanabe, K. Sato, K. Ueda, Y. Mori, H. Hasegawa, H. Matsuura, K. Ishii, H. Kuwatsuka, S. Namiki

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    Award type:Award from international society, conference, symposium, etc.  Country:Japan

  • 17th Microoptics Conference Paper Award

    2011.11   Microoptics Conference  

    T. Watanabe, Y. Hashizume, and H. Takahashi

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    Award type:Award from international society, conference, symposium, etc.  Country:Japan

  • 応用物理学会 講演奨励賞

    1997.7   応用物理学会  

    渡辺 俊夫

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    Award type:Award from Japanese society, conference, symposium, etc.  Country:Japan

Research Projects

  • 導波路型光スイッチの高性能化・大規模化の研究

    2018.4 - 2021.3

    科学研究費補助金  基盤研究(C)

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    Authorship:Principal investigator 

 

Social Activities

  • 第4回テックガーデンサロン

    Role(s): Lecturer

    蔵前工業会 鹿児島県支部  スイッチ! ~明治150年と光ファイバー50年の雑学談義~  2017.12

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    Audience: College students, Graduate students, General

    Type:Lecture

  • 鹿児島大学公開講座

    Role(s): Lecturer

    情報通信社会を支える光ファイバーのしくみ  2016.7

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    Audience: Junior students, High school students, College students, Graduate students, General

    Type:Lecture