フェロー/上席特別研究員/特別研究員

上席特別研究員 橋本 俊和
  • 上席特別研究員

    橋本 俊和

  • NTT先端集積デバイス研究所

光の波の操作による新たな情報処理を実現する光回路の研究

光の波や光量子に情報を収容して光の波/量子の特性を使って一度に演算することで従来技術では困難な計算を可能にする情報処理技術の創出を目指します。

表彰

  • 2011年 電子情報通信学会論文賞 "Compact and Athermal DQPSK Demodulator with Silica-Based Planar Lightwave Circuit"
  • 2014年 電子情報通信学会 エレクトロニクスソサイエティ活動功労表彰受賞
  • 2018年 電子情報通信学会 エレクトロニクスソサイエティ活動功労表彰受賞

学会役員等

  • 2012~2013年 電子情報通信学会 光エレクトロニクス研専委員会 幹事
  • 2014~2015年 電子情報通信学会 エレクトロニクスソサイエティ 企画広報幹事
  • 2016~2017年 電子情報通信学会エレクトロニクスソサイエティ 総務幹事
  • 2021年 電子情報通信学会 光エレクトロニクス研専委員会 副委員長

客員教授等

  • 横浜国立大学非常勤講師

著書

  • 『2030年の情報通信技術:生活者の未来像』(NTT出版,2015年,分担執筆)

論文

Recent journal papers

  • Nakajima, Mitsumasa; Tanaka, Kenji; Hashimoto, Toshikazu, "Scalable reservoir computing on coherent linear photonic processor," Communications Physics Vol. 4, No.1 (2021)
  • Sparrow, Chris; Martín-López, Enrique; Maraviglia, Nicola; Neville, Alex; Harrold, Christopher; Carolan, Jacques; Joglekar, Yogesh N; Hashimoto, Toshikazu; Matsuda, Nobuyuki; O'Brien, Jeremy L; "Simulating the vibrational quantum dynamics of molecules using photonics," Nature (2018)
  • Miyata, Masashi; Nakajima, Mitsumasa; Hashimoto, Toshikazu; "High-sensitivity color imaging using pixel-scale color splitters based on dielectric metasurfaces," ACS Photonics (2019)
  • Akatsuka, Tomoya; Goh, Takashi; Imai, Hiromitsu; Oguri, Katsuya; Ishizawa, Atsushi; Ushijima, Ichiro; Ohmae, Noriaki; Takamoto, Masao; Katori, Hidetoshi; Hashimoto, Toshikazu; "Optical frequency distribution using laser repeater stations with planar lightwave circuits," Optics Exp. (2020)
  • Miyata, Masashi; Nakajima, Mitsumasa; Hashimoto, Toshikazu; "Compound-eye metasurface optics enabling a high-sensitivity, ultra-thin polarization camera," Optics Exp. (2020)
  • Yamazaki, Hiroshi; Nakamura, Masanori; Kobayashi, Takayuki; Nagatani, Munehiko; Wakita, Hitoshi; Ogiso, Yoshihiro; Nosaka, Hideyuki; Hashimoto, Toshikazu; Miyamoto, Yutaka; "Net-400-Gbps PS-PAM transmission using integrated AMUX-MZM," Optics Exp. (2019)
  • Yamazaki, Hiroshi; Nagatani, Munehiko; Hamaoka, Fukutaro; Horikoshi, Kengo; Nakamura, Masanori; Matsushita, Asuka; Kanazawa, Shigeru; Hashimoto, Toshikazu; Nosaka, Hideyuki; Miyamoto, Yutaka; "Ultra-high-speed optical transmission using digital-preprocessed analog-multiplexed DAC," Optics Communications (2018)
  • Yamazaki, Hiroshi; Nakamura, Masanori; Goh, Takashi; Hashimoto, Toshikazu; Miyamoto, Yutaka; "Extension of Transmitter Bandwidth Using Optical Time-Interleaving Modulator and Digital Spectral Weaver," JLT (2020)
  • Yamazaki, Hiroshi; Nagatani, Munehiko; Wakita, Hitoshi; Ogiso, Yoshihiro; Nakamura, Masanori; Ida, Minoru; Nosaka, Hideyuki; Hashimoto, Toshikazu; Miyamoto, Yutaka; "IMDD transmission at net data rate of 333 Gb/s using over-100-GHz-bandwidth analog multiplexer and Mach-Zehnder modulator," JLT (2019)
  • Yamazaki, Masashi; Seno, Kazunori; Hashimoto, Toshikazu; Uenohara, Hiroyuki; "Experimental Investigation of Wavelength Conversion Using Highly-Nonlinear Fiber and Two-Stage-Comb-Generated Pump With High Frequency Precision," JLT (2019)
  • Nakajima, Mitsumasa; Suzuki, Kenya; Seno, Kazunori; Kasahara, Ryoichi; Goh, Takashi; Miyamoto, Yutaka; Hashimoto, Toshikazu; "Optical Arbitrary Waveform Processing of Over 100 Spatial Channels for Optical Performance Monitoring," JLT (2018)
  • Yamazaki, Hiroshi; Nagatani, Munehiko; Hamaoka, Fukutaro; Kanazawa, Shigeru; Nosaka, Hideyuki; Hashimoto, Toshikazu; Miyamoto, Yutaka; "Discrete Multitone Transmission at Net Data Rate of 250 Gb/s Using Digital-Preprocessed Analog-Multiplexed DAC With Halved Clock Frequency and Suppressed Image," JLT (2017)
  • Nakajima, Mitsumasa; Suzuki, Kenya; Yamaguchi, Keita; Ono, Hirotaka; Goh, Takashi; Fukutoku, Mitsunori; Miyamoto, Yutaka; Hashimoto, Toshikazu; "Multilane photonic spectral processor integrated in a spatial and planar optical circuit for a space-division multiplexing network," JLT (2017)
  • Yamazaki, Hiroshi; Nagatani, Munehiko; Wakita, Hitoshi; Nakamura, Masanori; Kanazawa, Shigeru; Ida, Minoru; Hashimoto, Toshikazu; Nosaka, Hideyuki; Miyamoto, Yutaka; "160-GBd (320-Gb/s) PAM4 transmission using 97-GHz bandwidth analog multiplexer," PTL (2018)
  • Sakamoto, Junji; Goh, Takashi; Katayose, Satomi; Kasahara, Ryoichi; Hashimoto, Toshikazu; "Shape-optimized multi-mode interference for a wideband visible light coupler," Optics Communications (2019)
  • Sakamoto, Junji; Nakamura, Atsushi; Okamoto, Keiji; Hashimoto, Toshikazu; "Low-mode-crosstalk coupler using multistage mode conversion," Optics Communications (2019)
  • Sakamoto, Junji; Goh, Takashi; Katayose, Satomi; Watanabe, Kei; Itoh, Mikitaka; Hashimoto, Toshikazu; "Compact and low-loss RGB coupler using mode-conversion waveguides," Optics Communications (2018)
  • Sakamoto, Junji; Hashimoto, Toshikazu; Kawata, Hiroaki; Hirai, Yoshihiko; "Single-Mode Polymer Embedded Waveguide for Visible Wavelength using SU-8," JPST (2019)
  • Nakajima, Mitsumasa; Nemoto, Naru; Yamaguchi, Keita; Kudo, Hiroshi; Yamaguchi, Joji; Suzuki, Kenya; Hashimoto, Toshikazu; "Analysis and suppression of high-order diffractions in liquid-crystal-based spatial light modulator for photonic switch application," JJAP (2017)
  • Miyata, Masashi; Nakajima, Mitsumasa; Hashimoto, Toshikazu; "Impedance-matched dielectric metasurfaces for non-discrete wavefront engineering," JAP (2019)

Recent conference papers

  • Yamazaki, Hiroshi; Nakamura, Masanori; Goh, Takashi; Hashimoto, Toshikazu; Miyamoto, Yutaka; "Transmitter Bandwidth Extension Using Optical Time-Interleaving Modulator and Digital Spectral Weaver," OFC (2020)
  • Fujisawa, Takeshi; Sakamoto, Taiji; Miyata, Masashi; Matsui, Takashi; Hashimoto, Toshikazu; Kasahara, Ryoichi; Nakajima, Kazuhide; Saitoh, Kunimasa; "Wavefront-matching-method-designed six-mode-exchanger based on grating-like waveguide on silica-PLC platform," OFC (2020)
  • Hashimoto, Toshikazu; "Automated Optical Waveguide Design Based on Wavefront Matching Method," OFC (2020)
  • Ibrahim, Salah; Hashimoto, Toshikazu; "Novel Lambda-Rich Data Center Network: From Underlying Principles to Candidate Technologies," OFC (2019)
  • Yamaguchi, Keita; Seno, Kazunori; Suzuki, Kenya; Kawahara, Hiroki; Fukutoku, Mitsunori; Hashimoto, Toshikazu; Miyamoto, Yutaka; "Integrated wavelength selective switch array for space division multiplexed network with ultra-low inter-spatial channel crosstalk," OFC (2018)
  • Nakajima, Mitsumasa; Suzuki, Kenya; Seno, Kazunori; Goh, Takashi; Kasahara, Ryoichi; Fukutoku, Mitsunori; Miyamoto, Yutaka; Hashimoto, Toshikazu; "Over-100-spatial-channel programmable spectral processor for SDM signal monitoring," OFC (2018)
  • Nakajima, Mitsumasa; Suzuki, Kenya; Yamaguchi, Keita; Ono, Hirotaka; Kawahara, Hiroki; Fukutoku, Mitsunori; Mizuno, Takayuki; Miyamoto, Yutaka; Hashimoto, Toshikazu; "SDM-compatible dynamic gain equalizer using spatial and planar optical circuit," OFC (2017)
  • Konisho, Shiori; Nakajima, Mitsumasa; Miyata, Masashi; Katayose, Satomi; Seno, Kazunori; Hashimoto, Toshikazu; "A compact WSS integrated by 1-f SPOC with dispersive metasurface and spectral interleaver," ECOC (2019)
  • Muranaka, Yusuke; Nakahara, Tatsushi; Ibrahim, Salah; Fujii, Takuro; Sakamaki, Yohei; Hashimoto, Toshikazu; "A route-and-select optical switch with flip-chip-bonded LVDS-compatible driver for sub-nanosecond switching," ECOC (2019)
  • Ibrahim, Salah; Hashimoto, Toshikazu; Shigematsu, Satoshi; "Contention-less scheduling-free Torus optical network comprising thousands of nodes," ECOC (2018)
  • Seno, Kazunori; Yamaguchi, Keita; Suzuki, Kenya; Hashimoto, Toshikazu; "Wide-Passband C+L-Band Wavelength Selective Switch by Alternating Wave-Band Arrangement on LCOS," ECOC (2018)
  • Yamazaki, Hiroshi; Nagatani, Munehiko; Wakita, Hitoshi; Ogiso, Yoshihiro; Nakamura, Masanori; Ida, Minoru; Hashimoto, Toshikazu; Nosaka, Hideyuki; Miyamoto, Yutaka; "Transmission of 400-Gbps discrete multi-tone signal using> 100-GHz-bandwidth analog multiplexer and InP Mach-Zehnder modulator," ECOC (2018)
  • Yamazaki, Hiroshi; Nagatani, Munehiko; Hamaoka, Fukutaro; Kanazawa, Shigeru; Nosaka, Hideyuki; Hashimoto, Toshikazu; Miyamoto, Yutaka; "Ultra-Wideband Digital-to-Analog Conversion Technologies for Tbit/s channel transmission," ECOC (2017)
  • Muranaka, Y; Nakahara, T; Ibrahim, S; Fujii, T; Segawa, T; Hashimoto, T; Takahashi, R; "Monolithically integrated 4× 4 optical switch with cascaded MZIs and EAM-gate array," ECOC (2017)
  • Miyata, Masashi; Nakajima, Mitsumasa; Hashimoto, Toshikazu; "Continuous Gradient Dielectric Metasurfaces for Non-discrete Spatial Light Manipulation," CLEO (2018)
  • Nakajima, Mitsumasa; Inubushi, Masanobu; Goh, Takashi; Hashimoto, Toshikazu; "Coherently Driven Ultrafast Complex-Valued Photonic Reservoir Computing," CLEO (2018)
  • Sparrow, Chris; Paesani, Stefano; Maraviglia, Nicola; Santagati, Raffaele; Vigliar, Caterina; Neville, Alex; Harrold, Chris; Russell, Nicholas J; O'Brien, Jeremy; Tew, David; "Quantum simulations in integrated photonics," Quantum Information and Measurement (2019)
  • Ishikawa, Hiroshi; Ibrahim, Salah; Nakahara, Tatsushi; Sugiyama, Hiroki; Hashimoto, Toshikazu; "A Novel Optoelectronic Parallel-to-Serial Converter for 100-Gbps Optical Packets," PSC (2018)
  • Ibrahim, Salah; Nakahara, Tatsushi; Ishikawa, Hiroshi; Hashimoto, Toshikazu; Takahashi, Ryo; "Highly energy-efficient receiver module for 100-Gbps burst-mode optical packets," PS (2017)
  • Yamazaki, Hiroshi; Nagatani, Munehiko; Kanazawa, S; Nakamura, M; Hamaoka, F; Nosaka, Hideyuki; Hashimoto, Toshikazu; Miyamoto, Yutaka; "Digital-Preprocessed Analog-Multiplexed DAC Technology for High-Speed Optical Transmission," PS (2017)
  • Yamazaki, Hiroshi; Nakamura, Masanori; Goh, Takakashi; Hashimoto, Toshikazu; Miyamoto, Yutaka; "Optical-Domain Extension of Transmitter Bandwidth Using Time-Interleaving Modulator," OECC (2020)
  • Serio, Kazunori; Isoda, Akira; Mizuno, Takayuki; Yamaguchi, Keita; Suzuki, Kenya; Hashimoto, Toshikazu; Miyamoto, Yutaka; "6× 6 Wavelength Cross Connect with 2-f and 4-f Optical Systems for SDM Photonic Nodes," OECC (2019)
  • Ibrahim, Salah; Nakahara, Tatsushi; Muranaka, Yusuke; Hashimoto, Toshikazu; "Burst-Mode Optical-Clock-Pulse Generator with Enhanced Sensitivity," OECC (2019)
  • Yamazaki, Hiroshi; Nagatani, Munehiko; Wakita, Hitoshi; Nakamura, Masanori; Hamaoka, Fukutaro; Kobayashi, Takayuki; Ogiso, Yoshihiro; Ida, Minoru; Hashimoto, Toshikazu; Nosaka, Hideyuki; "Digital-Preprocessed Analog-Multiplexed DAC for High-Speed Optical Communications," OECC (2019)
  • Yamazaki, Masashi; Seno, Kazunori; Hashimoto, Toshikazu; Uenohara, Hiroyuki; "Investigation of all-optical wavelength conversion with 2-stage-comb-generated pump for high frequency resolution," OECC (2019)
  • Kawahara, Hiroki; Sahara, Akio; Sone, Yoshiaki; Kawai, Shingo; Fukutoki, Mitsunori; Miyamoto, Yutaka; Yamaguchi, Keita; Suzuki, Kenya; Hashimoto, Toshikazu; "First investigation and reduction of inter-WSS crosstalk in multiple-arrayed WSSs for large-scale optical node," OECC (2017)

技術キーワード

  • 光回路、光波回路、光情報処理、光量子情報処理、光量子コンピュータ

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