• DocumentCode
    1029293
  • Title

    Determination of coupling coefficient of DFB lasers by a newly proposed method

  • Author

    Hirayama, Yuzo ; Okuda, Haruhisa ; Furuyama, H. ; Kinoshita, J. ; Nakamura, Mitsutoshi

  • Author_Institution
    Toshiba Corporation, Research & Development Center, Kawasaki, Japan
  • Volume
    23
  • Issue
    3
  • fYear
    1987
  • Firstpage
    101
  • Lastpage
    103
  • Abstract
    A new method of estimating the coupling coefficient of DFB lasers is proposed. A sub/main-mode spectral intensity ratio below the threshold current is employed in this method, instead of the stop-bandwidth used in the conventional method. It is demonstrated both theoretically and experimentally that the new method is capable of more accurate determination of the coupling coefficient of DFB lasers with phase-shifted corrugations.
  • Keywords
    distributed feedback lasers; semiconductor junction lasers; DFB lasers; coupling coefficient; phase-shifted corrugations; spectral intensity ratio; threshold current;
  • fLanguage
    English
  • Journal_Title
    Electronics Letters
  • Publisher
    iet
  • ISSN
    0013-5194
  • Type

    jour

  • DOI
    10.1049/el:19870072
  • Filename
    4257341
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=1029293