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UMEZAWA TOSHIMASA  梅沢 俊匡

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… Alternative Names

梅沢 俊匡  ウメザワ トシマサ

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Researcher Number 20636047
Other IDs
Affiliation (Current) 2025: 国立研究開発法人情報通信研究機構, ネットワーク研究所フォトニックICT研究センター, 主任研究員
Affiliation (based on the past Project Information) *help 2021 – 2023: 国立研究開発法人情報通信研究機構, ネットワーク研究所フォトニックICT研究センター, 主任研究員
2015 – 2020: 国立研究開発法人情報通信研究機構, ネットワークシステム研究所ネットワーク基盤研究室, 主任研究員
Review Section/Research Field
Except Principal Investigator
Basic Section 21020:Communication and network engineering-related / Medium-sized Section 21:Electrical and electronic engineering and related fields / Electron device/Electronic equipment
Keywords
Except Principal Investigator
communication systems / Signal processing / Millimeter wave / optical and mobile / wireless- wired / fiber radio / optical communications / mobile network / mobile fronthaul / radio over fiber … More / 光復調 / 光変調 / 光通信 / 超高速光復調 / 超高速光変調 / 光信号処理 / 光変復調 / 光多重 / 光回路 / 光デバイス Less
  • Research Projects

    (3 results)
  • Research Products

    (20 results)
  • Co-Researchers

    (7 People)
  •  Optical Discrete Time-Frequency Transform for Ultrafast Communications

    • Principal Investigator
      Sakamoto Takahide
    • Project Period (FY)
      2018 – 2022
    • Research Category
      Grant-in-Aid for Scientific Research (A)
    • Review Section
      Medium-sized Section 21:Electrical and electronic engineering and related fields
    • Research Institution
      Tokyo Metropolitan University
  •  Novel fronthaul technology for massive and ultra-dense radio access networks

    • Principal Investigator
      PHAM TIENDAT
    • Project Period (FY)
      2018 – 2020
    • Research Category
      Grant-in-Aid for Scientific Research (C)
    • Review Section
      Basic Section 21020:Communication and network engineering-related
    • Research Institution
      National Institute of Information and Communications Technology
  •  Optical time-frequency multiplexer for high-speed and high-density optical communication networks

    • Principal Investigator
      Sakamoto Takahide
    • Project Period (FY)
      2015 – 2018
    • Research Category
      Grant-in-Aid for Scientific Research (B)
    • Research Field
      Electron device/Electronic equipment
    • Research Institution
      National Institute of Information and Communications Technology

All 2021 2020 2019 2018 2017

All Journal Article Presentation

  • [Journal Article] FSO Receiver with High Optical Alignment Robustness Using High-Speed 2D-PDA and Space Diversity Technique2021

    • Author(s)
      Toshimasa Umezawa, Yuki Yoshida, Atsushi Kanno, Naokatsu Yamamoto and Tetsuya Kawanishi
    • Journal Title

      IEEE/OSA Journal of Lightwave Technology

      Volume: Vol.39, No.4 Issue: 4 Pages: 1040-1047

    • DOI

      10.1109/jlt.2020.3011425

    • Peer Reviewed / Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-18K04156
  • [Presentation] Fiber wireless and optical wireless communications using high-speed photonic devices2020

    • Author(s)
      Toshimasa Umezawa, Pham Tien Dat, Atsushi Kanno, and Naokatsu Yamamoto
    • Organizer
      International Conference on Advanced Technologies for Communications 2020
    • Invited / Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-18K04156
  • [Presentation] 30 GHz Radio over FSO System using High Speed 2D-PDA and Its Optical Path Switching Performance2020

    • Author(s)
      Toshimasa Umezawa, Pham Tien Dat, Atsushi Kanno, Kunihisa Jitsuno, Naokatsu Yamamoto and Tetsuya Kawanishi
    • Organizer
      46th European Conference on Optical Communication (ECOC 2020)
    • Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-18K04156
  • [Presentation] マルチピクセル型フォトディテクターによる空間光通信応用2020

    • Author(s)
      梅沢俊匡, 山本直克
    • Organizer
      電子情報通信学会2021年3月総合大会
    • Data Source
      KAKENHI-PROJECT-18K04156
  • [Presentation] 90-GHz+ 15 dBm high-output integrated photoreceiver driven by only photonic power supply2020

    • Author(s)
      Toshimasa Umezawa, Atsushi Kanno, Pham Tien Dat, Atsushi Matsumoto, Kouichi Akahane, Naokatsu Yamamoto, Tetsuya Kawanishi
    • Organizer
      Terahertz, RF, Millimeter, and Submillimeter-Wave Technology and Applications XIII
    • Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-18K04156
  • [Presentation] Power-over-Fiber-based 90-GHz High-Power-Integrated Photoreceiver for High Data Rate Radio-over-Fiber2020

    • Author(s)
      Toshimasa Umezawa, Pham Tien Dat, Atsushi Kanno, Naokatsu Yamamoto, and Tetsuya Kawanishi
    • Organizer
      14th Pacific Rim Conference on Lasers and Electro-Optics
    • Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-18K04156
  • [Presentation] マルチピクセル型フォトディテクターによるコヒーレントレシーバー応用2020

    • Author(s)
      梅沢俊匡, 吉田悠来, 菅野敦史, 山本直克, 川西哲也
    • Organizer
      電子情報通信学会2020年8月LQE研究会
    • Data Source
      KAKENHI-PROJECT-18K04156
  • [Presentation] Hybrid Optical Wireless-mmWave: Ultra High-Speed Indoor Communications for Beyond 5G2019

    • Author(s)
      Pham Tien Dat, Atsushi Kanno, Keizo Inagaki, Toshimasa Umezawa, Naokatsu Yamamoto, Tetsuya Kawanishi
    • Organizer
      IEEE INFOCOM 2019-IEEE Conference on Computer Communications Workshops (INFOCOM WKSHPS)
    • Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-18K04156
  • [Presentation] +16 dBm High Power and High Linearity Integrated Photoreceiver for W-band Fiber Wireless Communication Applications2019

    • Author(s)
      Toshimasa Umezawa, Astushi Kanno, Atsushi Matsumoto, Naokatsu Yamamoto, Tetsuya Kawanishi
    • Organizer
      44th International Conference on Infrared, Millimeter, and Terahertz Waves
    • Invited
    • Data Source
      KAKENHI-PROJECT-18K04156
  • [Presentation] Dual Band Millimeter-Wave Integrated Photoreceiver2019

    • Author(s)
      Toshimasa Umezawa, Ken-ichi Kashima, Atsushi Kanno, Pham Tien Dat, Naokatsu Yamamoto, and Tetsuya Kawanishi
    • Organizer
      2019 International Topical Meeting on Microwave Photonics (MWP)
    • Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-18K04156
  • [Presentation] 28-Gbuad PAM-4 Signal Detection through 16-core Fiber using High Speed 2D Photodetector Array Device2019

    • Author(s)
      Toshimasa Umezawa, Naokatsu Yamamoto
    • Organizer
      The 2019 Conference on Lasers & Electro-Optics / Europe and the European Quantum Electronics Conference
    • Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-18K04156
  • [Presentation] Integrated high-speed photodetector array for SDM communications2019

    • Author(s)
      Toshimasa Umezawa, Yuki Yoshida, Atsushi Kanno, Naokatsu Yamamoto, and Tetsuya Kawanishi
    • Organizer
      Asia Communications and Photonics Conference 2019
    • Invited / Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-18K04156
  • [Presentation] Direct coupling between 2D-PDA and triangular/square shape aligned MCF for universal SDM photoreceiver2018

    • Author(s)
      T. Umezawa, T. Sakamoto, A. Kanno, N. Yamamoto, T. Kawanishi
    • Organizer
      Conference on Laser and Electro Optics (CLEO 2018)
    • Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-18H03788
  • [Presentation] Numerical investigation on spatial coherent matched detection for detection of spatially multiplexed signals2018

    • Author(s)
      T. Sakamoto, T. Umezawa, N. Yamamoto, and T. Kawanishi
    • Organizer
      SPIE Photonics West
    • Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-18H03788
  • [Presentation] Two-dimensional Spatial Coherent Matched Detection Scheme for Modal Separation and Homodyne Detection of Mode-Division Multiplexed Signals2017

    • Author(s)
      T. Sakamoto, T. Umezawa, N. Yamamoto, T. Kawanish
    • Organizer
      the IEEE Photonics Conference 2017 (IPC 2017)
    • Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-15H04001
  • [Presentation] 高速2次元PDアレイを用いたマルチモードの位相特性評価2017

    • Author(s)
      日下田 健,梅沢俊匡,坂本高秀,川西哲也
    • Organizer
      電子情報通信学会ソサエティ大会
    • Data Source
      KAKENHI-PROJECT-15H04001
  • [Presentation] Dense SDM 32-pixel 2-D photodetector array2017

    • Author(s)
      T. Umezawa, T. Sakamoto, A. Kanno, K. Kusakata, K. Akahane, A. Matsumoto, N. Yamamoto, T. Kawanishi
    • Organizer
      43th European Conference on Optical Communication (ECOC 2017)
    • Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-15H04001
  • [Presentation] 10-GHz 32-pixel 2-D photodetector array for advanced optical fiber communications2017

    • Author(s)
      T. Umezawa, T. Sakamoto, K. Akahane, A. Matsumoto, A. Kanno, N. Yamamoto, T. Kawanishi
    • Organizer
      Conference on Laser and Electro Optics (CLEO 2017)
    • Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-15H04001
  • [Presentation] 2次元フォトダイオードアレイを用いた空間整合受信器による空間分割多重光の全チャネル多重分離・復調2017

    • Author(s)
      坂本高秀,梅沢俊匡,呂 國偉,山本直克,川西哲也
    • Organizer
      電子情報通信学会ソサエティ大会
    • Data Source
      KAKENHI-PROJECT-15H04001
  • [Presentation] Spatial Coherent Matched Detection Using High-Speed Two-Dimensional Photo-Diode Array for Full-Channel Demultiplexing and Demodulation of Mode-Division-Multiplexed Signals2017

    • Author(s)
      T. Sakamoto, T. Umezawa, G.W. Lu, K. Akahane, A. Matsumoto, A. Kanno, N. Yamamoto, T. Kawanishi
    • Organizer
      43th European Conference on Optical Communication (ECOC 2017)
    • Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-15H04001
  • 1.  Sakamoto Takahide (70392727)
    # of Collaborated Projects: 2 results
    # of Collaborated Products: 8 results
  • 2.  久利 敏明 (30359070)
    # of Collaborated Projects: 2 results
    # of Collaborated Products: 0 results
  • 3.  千葉 明人 (30435789)
    # of Collaborated Projects: 2 results
    # of Collaborated Products: 0 results
  • 4.  呂 国偉 (30599709)
    # of Collaborated Projects: 2 results
    # of Collaborated Products: 2 results
  • 5.  川西 哲也 (40359063)
    # of Collaborated Projects: 2 results
    # of Collaborated Products: 7 results
  • 6.  PHAM TIENDAT (50636321)
    # of Collaborated Projects: 1 results
    # of Collaborated Products: 6 results
  • 7.  山本 直克 (60328523)
    # of Collaborated Projects: 1 results
    # of Collaborated Products: 2 results

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