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silica-based planar waveguide spatial heterodyne spectrometer incorporating a phase shift scheme

Research Project

Project/Area Number 15K04689
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Optical engineering, Photon science
Research InstitutionGunma University

Principal Investigator

TAKADA Kazumasa  群馬大学, 大学院理工学府, 教授 (20359590)

Research Collaborator OKAMOTO Katsunari  
UDA Chikara  
SAITOH Katsuhumi  
YAMAGUCHI Kohei  
Project Period (FY) 2015-04-01 – 2018-03-31
Project Status Completed (Fiscal Year 2017)
Budget Amount *help
¥3,640,000 (Direct Cost: ¥2,800,000、Indirect Cost: ¥840,000)
Fiscal Year 2017: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2016: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2015: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Keywords光導波路 / 光集積回路 / 分光器 / フーリエ変換 / ハイブリッドカプラ / 光ハイブリッドカプラ / 石英系導波路 / 空間ヘテロダイン / マッハ・ツェンダー干渉計 / 偏光 / マッハ・ツェンダ干渉計 / スペクトル / プレーナ光波回路 / フーリエ分光 / 干渉計
Outline of Final Research Achievements

We fabricated a silica-based spatial heterodyne spectrometer incorporating 120° optical hybrid couplers as the output couplers of the individual Mach-Zehnder interferometers (MZIs) The free spectral range was 640 GHz We retrieved a narrow-band light whose width was 1 nm with the spectrometer. The rising and falling parts of the retrieved spectrum agreed well with the actual parts. The deviations of the signals from the actual signals on the flat top were within ±4% and the background noise peaks were 8~17%. We also retrieved the spectrum of a DFB laser light. The sepctral width was 14 GHz, which was the spectral resolution of the spectrometer and agreed with the designed value. Since a feature of the spectrometer is that the entire free spectral range is available for the spectral retrieval and the spectrum is derived simply without the use of an interpolation technique, our spectrometer will play an important role in developing the spectrometer to a commercially viable level.

Report

(4 results)
  • 2017 Annual Research Report   Final Research Report ( PDF )
  • 2016 Research-status Report
  • 2015 Research-status Report
  • Research Products

    (6 results)

All 2018 2017 2016 2015

All Journal Article (2 results) (of which Peer Reviewed: 2 results) Presentation (4 results)

  • [Journal Article] Fabrication of a silica-based complex Fourier-transform integrated-optic spatial heterodyne spectrometer incorporating 120° optical hybrid couplers2018

    • Author(s)
      Riki Uda, Kohei Yamaguchi, Kazumasa Takada and Katsunari Okamoto
    • Journal Title

      Applied Optics

      Volume: 14 Issue: 14 Pages: 3781-3787

    • DOI

      10.1364/ao.57.003781

    • Related Report
      2017 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Optical Two-Tone Signal Generation without Use of Optical Filter for Photonics-Assisted Radio Frequency Quadrupling2015

    • Author(s)
      A. Chiba, Y. Akamatsu and K. Takada
    • Journal Title

      Optics Letters

      Volume: 40 Pages: 3651-3654

    • Related Report
      2015 Research-status Report
    • Peer Reviewed
  • [Presentation] ハイブリッドカプラーを搭載した複素フーリエ変換型FISH分光器の作製2018

    • Author(s)
      宇田 力、高田 和正、山口 航平、岡本 勝就
    • Organizer
      第65回応用物理学会春季学術講演会
    • Related Report
      2017 Annual Research Report
  • [Presentation] 複素フーリエ変換型FISH分光器用の光120゜ハイブリッドカプラーの作製2017

    • Author(s)
      齊藤勝文, 山口航平, 宇田力, 高田和正, 岡本勝就
    • Organizer
      第64回応用物理学会春季学術講演会
    • Place of Presentation
      パシフィコ横浜
    • Year and Date
      2017-03-14
    • Related Report
      2016 Research-status Report
  • [Presentation] 複素フーリエ変換型FISH分光器用光90°ハイブリッドカプラーの作製2017

    • Author(s)
      山口航平, 茂木修三, 宇田力, 齊藤勝文, 高田和正, 岡本勝就
    • Organizer
      第64回応用物理学会春季学術講演会
    • Place of Presentation
      パシフィコ横浜
    • Year and Date
      2017-03-14
    • Related Report
      2016 Research-status Report
  • [Presentation] 変調度が異なる光波の合成と偏光操作により抽出された高次光側帯波の評価2016

    • Author(s)
      赤松洋介,千葉明人,高田和正
    • Organizer
      信学技法
    • Place of Presentation
      神戸市産業振興センター
    • Year and Date
      2016-01-28
    • Related Report
      2015 Research-status Report

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Published: 2015-04-16   Modified: 2019-03-29  

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