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Research on broadband optical parametric amplification adn wavelength conversion for large capacity optical communication

Research Project

Project/Area Number 21H01330
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Review Section Basic Section 21020:Communication and network engineering-related
Research InstitutionTokai University

Principal Investigator

Asobe Masaki  東海大学, 総合科学技術研究所, 教授 (60522000)

Co-Investigator(Kenkyū-buntansha) 山口 滋  東海大学, 理学部, 教授 (40297205)
Project Period (FY) 2021-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥17,290,000 (Direct Cost: ¥13,300,000、Indirect Cost: ¥3,990,000)
Fiscal Year 2023: ¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2022: ¥7,020,000 (Direct Cost: ¥5,400,000、Indirect Cost: ¥1,620,000)
Fiscal Year 2021: ¥6,110,000 (Direct Cost: ¥4,700,000、Indirect Cost: ¥1,410,000)
Keywords光通信 / 大容量 / 広帯域 / 光増幅 / 波長変換 / 光パラメトリック / ガス分光 / センサ / 光増幅器 / パラメトリック増幅
Outline of Research at the Start

光通信の大容量化に資するため、光ファイバの伝送損失が小さい1300nm-1800nmの波長を増幅可能な新規光増幅器を研究する。周期分極反転LiNbO3(PPLN)導波路の構造を工夫し、複数波長で位相整合可能なマルチQPM素子を用いて、通信波長帯レーザの第2高調波発生(SHG)による励起光の発生と光パラメトリック増幅を1つの素子で実現し、コンパクトかつ安定な光増幅器を構成する。波長帯の拡大により、伝送容量の大幅な拡大が期待される。また、光通信用の波長可変レーザを任意の波長へ変換し、環境ガスの近赤外波長域における吸収スペクトルの高分解能測定を実現することで、環境ガスのセンサー開発にも貢献する。

Outline of Final Research Achievements

Using a reflective module with an SH light mirror attached to a multi-QPM device with asymmetric phase matching characteristics, we achieved pumping light generation and signal amplification in a single device. Furthermore, we attempted to amplify the modulated signal light and demonstrated for the first time that OPA using a single device can provide sufficient signal quality applicable to optical communications. We also demonstrated for the first-time repeated transmission by compensating for optical fiber loss using OPA outside the EDFA gain band. By amplifying the S-band signal and transmitting the L-band idler light after the OPA, we demonstrated dispersion compensation due to the phase conjugation effect. We also verified a configuration for retransmitting the S-band signal after the OPA and demonstrated that the transmission distance could be extended by using appropriate dispersion compensation.

Academic Significance and Societal Importance of the Research Achievements

近年通信分野の情報トラフィックはIoTなどの普及により目覚ましい勢いで増大しており、通信インフラを支える光通信の大容量化が急務となっている。現在の光通信システムの周波数帯域は中継器に用いられるEDFAの帯域で制限されているが、本研究の成果はこの制限を取り払い、光ファイバの低損失帯域である1.3-1.8μmでの帯域での中継増幅を用いた伝送の可能性を拓くものであり、光通信の広帯域化による大容量化を実現するうえで大きな学術的、社会的意義がある成果が得られたと言える。また本研究成果を利用して炭化水素系ガスの1.7-1.8μm帯の吸収スペクトルの計測も実現され、ガスセンシングの分野の発展にも貢献できた。

Report

(4 results)
  • 2023 Annual Research Report   Final Research Report ( PDF )
  • 2022 Annual Research Report
  • 2021 Annual Research Report
  • Research Products

    (11 results)

All 2024 2023 2022 2021

All Journal Article (4 results) (of which Peer Reviewed: 2 results,  Open Access: 2 results) Presentation (7 results) (of which Int'l Joint Research: 2 results,  Invited: 1 results)

  • [Journal Article] Parametric optical amplification using a reflective multiple quasi-phase-matched LiNbO<sub>3</sub> waveguide module2024

    • Author(s)
      Asobe Masaki、Kawabata Yuki、Yagi Daiki、Kazama Takushi、Enbutsu Koji、Umeki Takeshi
    • Journal Title

      Optics Continuum

      Volume: 3 Issue: 2 Pages: 207-218

    • DOI

      10.1364/optcon.520219

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Transmission of signal and idler using optical parametric amplifier based on PPLN waveguide2024

    • Author(s)
      Asobe Masaki、Wanifeni Ndadi、Kazama Takushi、Enbutsu Koji、Umeki Takeshi
    • Journal Title

      Optics Express

      Volume: 32 Issue: 5 Pages: 8437-8446

    • DOI

      10.1364/oe.519000

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Broadband optical parametric amplification using PPLN waveguide pumped by detuned second harmonic2022

    • Author(s)
      Asobe Masaki、Yagi Daiki、Kawabata Yuki、Umeki Takeshi、Enbutsu Koji、Kazama Takushi、Kasahara Ryoichi
    • Journal Title

      Optics Express

      Volume: 30 Issue: 6 Pages: 9473-9473

    • DOI

      10.1364/oe.453578

    • Related Report
      2021 Annual Research Report
  • [Journal Article] Parametric wavelength conversion with bidirectional utilization of a multiple QPM device2021

    • Author(s)
      Asobe Masaki、Punhavan Saroeun、Kato Masato、Umeki Takeshi、Enbutsu Koji、Kazama Takushi、Kasahara Ryoichi
    • Journal Title

      Optics Express

      Volume: 29 Issue: 15 Pages: 22900-22900

    • DOI

      10.1364/oe.428868

    • Related Report
      2021 Annual Research Report
  • [Presentation] Repeated transmission of S band signal using optical parametric amplifier based on PPLN waveguide2024

    • Author(s)
      Ndadi Wanifeni, Masaki Asobe, Takushi Kazama, Koji Enbutsu , and Takeshi Umeki
    • Organizer
      2024年電子情報通信学会総合大会
    • Related Report
      2023 Annual Research Report
  • [Presentation] Transmission of S band signal using optical parametric amplifier based on PPLN waveguide2023

    • Author(s)
      Ndadi Wanifeni, Masaki Asobe, Takushi Kazama, Koji Enbutsu, and Takeshi Umeki
    • Organizer
      Optica Nonlinear Optics Topical Meeting 2023
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Transmission of S band signal utilizing spectral inversion in PPLN based optical parametric amplifier2023

    • Author(s)
      Ndadi Wanifeni, Masaki Asobe, Takushi Kazama, Koji Enbutsu, and Takeshi Umeki
    • Organizer
      2023年電子情報通信学会ソサエティ大会
    • Related Report
      2023 Annual Research Report
  • [Presentation] Efficient frequency mixing using PPLN waveguides for optical communication and gas sensing2023

    • Author(s)
      Masaki Asobe
    • Organizer
      Dynamics Days Central Asia and Caucasus
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] 反射型波長変換モジュールを用いた光パラメトリック増幅器の検討2023

    • Author(s)
      工藤 勇人 川端優樹 遊部雅生 風間拓志 圓佛晃次 梅木毅伺
    • Organizer
      2022年度 レーザー学会東京支部研究会
    • Related Report
      2022 Annual Research Report
  • [Presentation] 反射型マルチ QPM モジュールを用いた光パラメトリック増幅の検討2022

    • Author(s)
      川端優樹 遊部雅生 風間拓志 圓佛晃次 梅木毅伺 渡邉 啓
    • Organizer
      2022年電子情報通信学会ソサエティ大会
    • Related Report
      2022 Annual Research Report
  • [Presentation] PPLN導波路を用いたOPAにおける利得波長域拡大の検討2021

    • Author(s)
      八木 大希 川端 優樹 遊部雅生 風間拓志 圓佛晃次 梅木毅伺 笠原亮一
    • Organizer
      2021年電子情報通信学会ソサエティ大会
    • Related Report
      2021 Annual Research Report

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Published: 2021-04-28   Modified: 2025-01-30  

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