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1998 Fiscal Year Final Research Report Summary

Resarch on an extremely short-external-cavity tunable laser diode

Research Project

Project/Area Number 09650056
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field Applied optics/Quantum optical engineering
Research InstitutionRitsumeikan University

Principal Investigator

UKITA Hiroo  Ritsumeikan University, Photonics, Professor, 理工学部, 教授 (00278491)

Co-Investigator(Kenkyū-buntansha) OKADA Masakatsu  Ritsumeikan University, Photonics, Professor, 理工学部, 教授 (90247809)
Project Period (FY) 1997 – 1998
Keywordstunable laser diode / external-cavity laser diode / photothermal effect / InP / microcantilever / bimorph structure / thermal strain / antireflection coating
Research Abstract

A wavelength measuring method, which uses a laser diode (LD) attached on a flying slider and a mirror (semi-transparent optical disk) for an extremely short-external-cavity, is proposed.
Not only the wavelength but also the side-mode suppression ratio, the spectrum line width and the mode interval are experimentally investigated, with the external-cavity length, the reflectivity of the LD facet, and the drive current as parameters. We achieved a range of 23nm by changing the external-cavity length for a 1.3 mum wavelength laser diode with antireflection coating on the facet facing the external mirror.
The photothermal deflection of a microcantilever is much increased with a bimorph and an antireflection structure. The deflection is more than half wavelength by the temperature rise of 100゚C which is expected by an optical absorptance of over 98% for the antireflection coating of Au/Si_3N4/Au fabricated on the bimorph structure.
As a result, the designed cantilever monolithically integrated on gallium arsenide (GaAs, 2lambda=0.83 mum) or indium phosphide (InP, lambda=1.3 mum) will be used for the external-cavity length change of a tunable laser diode.

  • Research Products

    (12 results)

All Other

All Publications (12 results)

  • [Publications] 田邊裕一郎、浮田宏生: "3層バイモルフ微小梁の熱変位拡大のための一設計" 電気学会マイクロマシン研究会資料. MM-98-5. 23-28 (1998)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 増田陽一郎、浮田宏生: "浮上スライダー方式による複合共振半導体レーザーの波長解析" 光学. 26, 8. 442-447 (1998)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 浮田宏生: "光マイクロマシン(巻頭言)" 光学. 26, 6. p.305 (1998)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 浮田宏生: "光マイクロマシン技術の進展" 電気情報通信学会誌. 81, 12. 1234-1244 (1998)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Bijan Ghafary, Suo Donghui and Masakatsu Okada: "Dynamics of an Optically Switched Bistable Semiconductor Laser" OPTICAL REVIEW. 5, No.2. 99-104 (1998)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Bijan Ghafary and Masakatsu Okada: "Switching of a Semiconductor Laser with Multi-Detuned Optical Inputs by Controlling Injection Current" OPTICAL REVIEW. 6, No.3to be published.

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Y.Tanabe and H.Ukita: ""An design for the increment of thermal deflection by 3-layer bimorhp microcantilevers"" Transaction of the Technical Report of Micromachine. MM-98-5. 23-28 (1998)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Y.Masuda and H.Ukita: ""An experimental analysis of an extremely short-cavity laser diode wavelength ushing a flying slider" Kogaku (Optics). 26,8. 442-447 (1998)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] H.Ukita: ""Optical MEMS"" Kogaku (Optics). 26,6. 305 (1998)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] H.Ukita: ""Optical Microelectromechanical Systems"" The Jornal of the Institute of Electronics, Information and Communication Engineerings. 81,12. 1234-1244 (1998)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Bijan Ghafary, Suo Donghui and Masakatsu Okada: ""Dynamics of an Optically Switched Bistable Semiconductor Laser"" OPTICAL REVIEW. 5, No.2. 99-104 (1998)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Bijan Ghafary and Masakatsu Okada: ""Switching of a Semiconductor Laser with Multi-Detuned Optical Inputs by Controlling Injection Current"" OPTICAL REVIEW. 6, No.3(to be published).

    • Description
      「研究成果報告書概要(欧文)」より

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Published: 1999-12-08  

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