• DocumentCode
    1540447
  • Title

    Electrically pumped InGaAs quantum dot ring and cylindrical cavity lasers

  • Author

    Groom, K.M. ; Wilson, L.R. ; Mowbray, D.J. ; Skolnick, M.S. ; Hill, G. ; Steer, M.J. ; Hopkinson, M.

  • Author_Institution
    Dept. of Phys. & Astron., Sheffield Univ., UK
  • Volume
    37
  • Issue
    20
  • fYear
    2001
  • fDate
    9/27/2001 12:00:00 AM
  • Firstpage
    1220
  • Lastpage
    1222
  • Abstract
    Operation of an electrically pumped, cylindrical cavity laser containing a stack of five self-assembled InGaAs quantum dot layers is reported. A threshold current density of 47 A cm2 is obtained at 150 K, with whispering gallery mode laser emission observed at ~1.2 eV. Fabrication of a ring cavity via the removal of part of the non-lasing central region of the cylinder results in a 30% reduction in threshold current
  • Keywords
    III-V semiconductors; gallium arsenide; indium compounds; laser cavity resonators; quantum well lasers; ring lasers; semiconductor quantum dots; 1.2 eV; 150 K; InGaAs; InGaAs quantum dot lasers; electrically pumped lasers; quantum dot cylindrical cavity lasers; quantum dot ring cavity lasers; semiconductor lasers; threshold current density; threshold current reduction; whispering gallery mode laser emission;
  • fLanguage
    English
  • Journal_Title
    Electronics Letters
  • Publisher
    iet
  • ISSN
    0013-5194
  • Type

    jour

  • DOI
    10.1049/el:20010830
  • Filename
    956667
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=1540447