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2010 Fiscal Year Final Research Report

Investigation on the frequency stabilization of laser diode

Research Project

  • PDF
Project/Area Number 21740299
Research Category

Grant-in-Aid for Young Scientists (B)

Allocation TypeSingle-year Grants
Research Field Atomic/Molecular/Quantum electronics
Research InstitutionThe University of Electro-Communications

Principal Investigator

ZHANG Yun  The University of Electro-Communications, 大学院・情報理工学研究科, 助教 (00508830)

Project Period (FY) 2009 – 2010
Keywords半導体レーザー / 周波数安定度
Research Abstract

We experimentally demonstrated that the excess phase noise of an external cavity diode laser (ECDL) can be efficiently suppressed by phase-to-amplitude noise conversion and filtered optical feedback techniques. We have observed that the phase noise of an ECDL was suppressed more than 40 dB and reached the shot noise limit from 15MHz using the above-mentioned technique. This opens a new way to reduce the phase noise of diode lasers. We generated second harmonic light using a enhancement cavity. This allows an conversion efficiency of 25% and produces an output power of up to 10 mW at 540 nm.

  • Research Products

    (5 results)

All 2011 2010 2009 Other

All Journal Article (2 results) Presentation (3 results)

  • [Journal Article] Generationof Quasi-CW Deep Ultraviolet Lightbelow 200 nm by Two Successive CavityEnhanced Second HarmonicGenerators2011

    • Author(s)
      Y.Zhang, N.Watanabe, Y.Okada-Shudo, M.Watanabe, M.Hyodo,X.Y.Wang, Yong Zhu, C.T.Chen, T.Kanai, S.Watanabe
    • Journal Title

      Jpn.J.Appl.Phys 50

      Pages: 042703

  • [Journal Article] Efficientphase noise suppression ofdiode-laser by phase-to-amplitudenoise conversion and filtered opticalfeedback

    • Author(s)
      Yun Zhang, Suguru Miyakawa,Katsuyuki Kasai, Yoshiko Okada-Shudo, Masayoshi Watanabe
    • Journal Title

      Optics Exprees (accepted)

  • [Presentation] 光フィルタリングと光フィードバックによる半導体レーザーの雑音低減2011

    • Author(s)
      宮川雄,笠井克幸,張贇,岡田佳子,渡辺昌良
    • Organizer
      第58回応用物理講演会
    • Place of Presentation
      神奈川工科大学
    • Year and Date
      2011-03-25
  • [Presentation] 光フィルタリングと光フィードバックによる半導体レーザーの雑音低減2010

    • Author(s)
      宮川雄,和田一尭,笠井克幸,張贇,岡田佳子,渡辺昌良
    • Organizer
      第57回応用物理講演会
    • Place of Presentation
      東海大学(湘南キャパス)
    • Year and Date
      2010-03-19
  • [Presentation] 光フィルタリングと光フィードバックによる外部型半導体レーザーの雑音低減2009

    • Author(s)
      和田一尭,宮川雄,笠井克幸,張贇,岡田佳子,渡辺昌良
    • Organizer
      日本光学学会年会
    • Place of Presentation
      新潟コンベンションセンター
    • Year and Date
      2009-11-25

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Published: 2012-02-13   Modified: 2016-04-21  

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