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Development of highly-integrated on-chip optical processor

Research Project

Project/Area Number 19K15037
Research Category

Grant-in-Aid for Early-Career Scientists

Allocation TypeMulti-year Fund
Review Section Basic Section 21060:Electron device and electronic equipment-related
Research InstitutionHokkaido University (2020-2021)
University of Hyogo (2019)

Principal Investigator

Sato Takanori  北海道大学, 情報科学研究院, 准教授 (60835809)

Project Period (FY) 2019-04-01 – 2022-03-31
Project Status Completed (Fiscal Year 2021)
Budget Amount *help
¥3,120,000 (Direct Cost: ¥2,400,000、Indirect Cost: ¥720,000)
Fiscal Year 2021: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2020: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2019: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Keywords光演算回路 / 光行列演算回路 / 光全加算器 / 光共振器 / 光導波路 / シリコンフォトニクス / 光集積回路 / 光導波路解析 / フォトニック結晶
Outline of Research at the Start

既存の電子デバイス性能の限界を突破し得る光演算プロセッサの実現に向けて、超小型なシリコン光演算回路を設計・開発する。光回路を”超小型”にするために、フォトニック結晶とよばれる微細な人工周期構造を駆使したデバイス設計を行う。さらに、大量生産可能なCMOS互換プロセスを用いてデバイスを実際に試作し、光演算回路として動作可能であることを実験的に示す。

Outline of Final Research Achievements

In this study, we investigated the miniaturization of optical matrix multipliers and optical full adders, which can be candidates for components of optical processors. Focusing on the tunable optical power divider and the tunable optical phase shifter included in these devices, we considered that both components can be miniaturized by using silicon ring resonators. Prototypes of the tunable optical power divider and the tunable optical phase shifter were fabricated and obtained characteristics were almost consistent with theoretical expectations. We clarified that the optical matrix multipliers and optical full adders based on the optical resonators enable higher-order processing, which is at least a factor of 10, compared with those based on 3dB power dividers and the phase shifter with straight waveguides.

Academic Significance and Societal Importance of the Research Achievements

現在の電子デバイスの演算性能は既に限界に達しつつあり、革新的な技術の開発が望まれており、その突破口の1つとして、光信号を用いて演算を行う光演算プロセッサの実現に向けた検討が行われている。しかしながら、光回路の素子サイズは従来の電子回路よりも大きいため、光回路の集積度に課題があった。本研究では、光回路素子の構成に光共振器を導入することで、素子サイズの小型化、すなわち光回路の集積度の向上を目指しており、光演算プロセッサの実用化を大きく推し進めるものと期待される。

Report

(4 results)
  • 2021 Annual Research Report   Final Research Report ( PDF )
  • 2020 Research-status Report
  • 2019 Research-status Report
  • Research Products

    (11 results)

All 2022 2021 2020 2019

All Journal Article (3 results) (of which Peer Reviewed: 2 results,  Open Access: 2 results) Presentation (8 results) (of which Int'l Joint Research: 1 results,  Invited: 5 results)

  • [Journal Article] An electro-optic full adder designed with coupled Si ring resonators for highly dense integration2022

    • Author(s)
      Takanori Sato and Akira Enokihara
    • Journal Title

      Results in Optics

      Volume: - Pages: 100230-100230

    • DOI

      10.1016/j.rio.2022.100230

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] 光の領域と融合する無線通信2021

    • Author(s)
      西村 寿彦, 佐藤 孝憲, 小川 恭孝, 大鐘 武雄
    • Journal Title

      電子情報通信学会誌

      Volume: 104 Pages: 485-489

    • Related Report
      2021 Annual Research Report
  • [Journal Article] Ultrasmall design of a universal linear circuit based on microring resonators2019

    • Author(s)
      Takanori Sato and Akira Enokihara
    • Journal Title

      Optics Express

      Volume: 27 Issue: 23 Pages: 33005-33010

    • DOI

      10.1364/oe.27.033005

    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] 電子デバイスと光デバイスの融合に向けて2021

    • Author(s)
      佐藤 孝憲
    • Organizer
      第7回北大・部局横断シンポジウム
    • Related Report
      2021 Annual Research Report
    • Invited
  • [Presentation] Silicon photonics for optical processing unit2021

    • Author(s)
      Takanori Sato
    • Organizer
      The 1st Hokkaido Young Professionals Workshop
    • Related Report
      2021 Annual Research Report
    • Invited
  • [Presentation] Optical MIMO signal processing based on planar lightwave circuit2021

    • Author(s)
      Takanori Sato
    • Organizer
      4th International Workshop on Photonics applied to Electromagnetic Measurements
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] シリコン光演算回路の研究動向2020

    • Author(s)
      佐藤 孝憲
    • Organizer
      IEEE 札幌支部 学術講演会
    • Related Report
      2020 Research-status Report
    • Invited
  • [Presentation] 電子デバイスの限界を光で突破できるか2020

    • Author(s)
      佐藤 孝憲
    • Organizer
      第6回北大・部局横断シンポジウム
    • Related Report
      2020 Research-status Report
    • Invited
  • [Presentation] シリコンリング共振器を用いた位相シフタとパワーディバイダの試作評価2020

    • Author(s)
      佐藤 孝憲, 榎原 晃
    • Organizer
      2020年電子情報通信学会ソサイエティ大会
    • Related Report
      2020 Research-status Report
  • [Presentation] シリコンリング共振器を用いた光演算回路の飛躍的な演算次数増大に向けた検討2020

    • Author(s)
      佐藤 孝憲, 榎原 晃
    • Organizer
      2020年電子情報通信学会総合大会
    • Related Report
      2019 Research-status Report
  • [Presentation] 90°曲がりSi細線導波路の円筒座標系に基づくビーム伝搬法解析2019

    • Author(s)
      佐藤 孝憲, 藤澤 剛, 齊藤 晋聖
    • Organizer
      2019年電子情報通信学会ソサイエティ大会
    • Related Report
      2019 Research-status Report

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Published: 2019-04-18   Modified: 2023-01-30  

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