• DocumentCode
    1033160
  • Title

    Design for single-mode asymmetric quarter-wavelength-shifted DFB laser with high differential efficiency

  • Author

    Soda, H. ; Ishikawa, Hiroshi ; Imai, H.

  • Author_Institution
    Fujitsu Laboratories Ltd., Atsugi, Japan
  • Volume
    23
  • Issue
    11
  • fYear
    1987
  • Firstpage
    598
  • Lastpage
    599
  • Abstract
    An asymmetric quarter-wavelength-shifted DFB laser which has high differential efficiency and a large threshold gain difference under high-power operation has been designed taking the spatial hole-burning effect into account. The optimum kL was found to be about 1.4 in the laser, which has an asymmetry S/L of 0.15, where S is the distance from the centre to the phase shift position and L is the laser length.
  • Keywords
    distributed feedback lasers; semiconductor junction lasers; asymmetric quarter-wavelength-shifted DFB laser; design; differential efficiency; high-power operation; single-mode; spatial hole-burning effect; threshold gain difference;
  • fLanguage
    English
  • Journal_Title
    Electronics Letters
  • Publisher
    iet
  • ISSN
    0013-5194
  • Type

    jour

  • DOI
    10.1049/el:19870429
  • Filename
    4257761
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=1033160