• DocumentCode
    1011823
  • Title

    Mechanism for high singlemode stability of gain-coupled DFB lasers with periodically etched quantum wells

  • Author

    Makino, Tatsuya

  • Author_Institution
    Bell-Northern Res., Ottawa, Ont.
  • Volume
    31
  • Issue
    18
  • fYear
    1995
  • fDate
    8/31/1995 12:00:00 AM
  • Firstpage
    1579
  • Lastpage
    1581
  • Abstract
    The sidemode suppression ratio of gain-coupled DFB lasers with periodically etched quantum wells is analysed by a more accurate model for amplified spontaneous emission. It is shown that the periodic etching of quantum wells is very effective for providing a high side-mode suppression. The mechanism for the high singlemode stability is explained by the effective modal gain. which has an enhancement at the longer wavelength side of the Bragg stopband
  • Keywords
    distributed feedback lasers; etching; laser modes; laser stability; quantum well lasers; superradiance; Bragg stopband; amplified spontaneous emission; gain-coupled DFB lasers; modal gain; periodic etching; quantum wells; sidemode suppression ratio; singlemode stability;
  • fLanguage
    English
  • Journal_Title
    Electronics Letters
  • Publisher
    iet
  • ISSN
    0013-5194
  • Type

    jour

  • DOI
    10.1049/el:19951088
  • Filename
    469158
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=1011823