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High speed and high resolution spectroscopy using two types of optical frequency combs

Research Project

Project/Area Number 18H01907
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Review Section Basic Section 30020:Optical engineering and photon science-related
Research InstitutionNational Institute of Advanced Industrial Science and Technology

Principal Investigator

Kashiwagi Ken  国立研究開発法人産業技術総合研究所, 計量標準総合センター, 主任研究員 (10509730)

Co-Investigator(Kenkyū-buntansha) 大久保 章  国立研究開発法人産業技術総合研究所, 計量標準総合センター, 主任研究員 (30635800)
稲場 肇  国立研究開発法人産業技術総合研究所, 計量標準総合センター, 研究グループ長 (70356492)
Project Period (FY) 2018-04-01 – 2021-03-31
Project Status Completed (Fiscal Year 2020)
Budget Amount *help
¥17,160,000 (Direct Cost: ¥13,200,000、Indirect Cost: ¥3,960,000)
Fiscal Year 2020: ¥5,460,000 (Direct Cost: ¥4,200,000、Indirect Cost: ¥1,260,000)
Fiscal Year 2019: ¥7,020,000 (Direct Cost: ¥5,400,000、Indirect Cost: ¥1,620,000)
Fiscal Year 2018: ¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000)
Keywords光周波数コム / 光コム / 分光計測 / デュアルコム分光
Outline of Final Research Achievements

In this study, we developed techniques that control electro-optic modulator based frequency combs (EOM-combs), combine two types of frequency combs for spectroscopy. The EOM-comb was broadened and was converted to the visible wavelength range. We phase-locked the EOM-comb to a narrow-linewidth frequency comb and established mutual coherence between the two combs. Finally, we developed a dual-comb spectroscopy system using the combs. The system realized shorter measurement time compared to conventional method by suppressing averaging time.

Academic Significance and Societal Importance of the Research Achievements

本研究課題で得られた成果は、高い繰り返し周波数の光コムである変調器型光コムの制御が簡便になり、より計測応用として利用しやすい装置を構築可能とする。また、2種の光コムを組み合わせて構築した分光システムは、その高速性を生かして環境ガスのリアルタイム解析、生体や細胞を高速に分析するなどのニーズに応えると共に、非平衡状態の物理現象の観測など、環境・製造・医療・物性などの研究分野への適用が期待される。

Report

(4 results)
  • 2020 Annual Research Report   Final Research Report ( PDF )
  • 2019 Annual Research Report
  • 2018 Annual Research Report
  • Research Products

    (5 results)

All 2020 2019

All Presentation (4 results) (of which Int'l Joint Research: 2 results) Patent(Industrial Property Rights) (1 results)

  • [Presentation] Narrow Linewidth Electro-Optic Modulator Based Comb Generation with a Simple Modulator Configuration2020

    • Author(s)
      Ken Kashiwagi, Sho Okubo, and Hajime Inaba
    • Organizer
      Conference on Lasers and Electro Optics 2020 (CLEO 2020)
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 変調器型光コムの狭線幅化2019

    • Author(s)
      柏木謙, 大久保 章, 稲場 肇
    • Organizer
      2019年 第80回応用物理学会秋季学術講演会
    • Related Report
      2019 Annual Research Report
  • [Presentation] High Repetition Rate Visible Frequency Comb Generation from Electro-Optic Modulation in the 1550 nm Region2019

    • Author(s)
      Ken Kashiwagi, Sho Okubo, and Hajime Inaba
    • Organizer
      Conference on Lasers and Electro Optics 2019 (CLEO 2019)
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 通信波長帯変調器に基づく高繰り返し可視光コム発生2019

    • Author(s)
      柏木謙, 大久保章, 稲場肇
    • Organizer
      2019年 第66回応用物理学会春季学術講演会
    • Related Report
      2018 Annual Research Report
  • [Patent(Industrial Property Rights)] 光周波数コムの制御方法および制御装置2020

    • Inventor(s)
      柏木謙、大久保章、稲場肇
    • Industrial Property Rights Holder
      産業技術総合研究所
    • Industrial Property Rights Type
      特許
    • Industrial Property Number
      2020-038848
    • Filing Date
      2020
    • Related Report
      2019 Annual Research Report

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Published: 2018-04-23   Modified: 2022-01-27  

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