• English
  • Deutsch
  • Log In
    Password Login
    or
  • Research Outputs
  • Projects
  • Researchers
  • Institutes
  • Statistics
Repository logo
Fraunhofer-Gesellschaft
  1. Home
  2. Fraunhofer-Gesellschaft
  3. Konferenzschrift
  4. A novel active region concept for highly efficient GaSb-based optically in-well pumped semiconductor disk lasers
 
  • Details
  • Full
Options
2009
Conference Paper
Titel

A novel active region concept for highly efficient GaSb-based optically in-well pumped semiconductor disk lasers

Abstract
A novel active region concept for GaSb-based optically pumped mid-infrared vertical external cavity surface emitting lasers (VECSELs, also referred to as optically pumped semiconductor disk lasers - OPSDLs) is presented. The concept is based on GaxIn(1-x)As(y)Sb(1-y) type-I quantum wells (QWs) embedded between AlAs(0.08)Sb(0.92) barrier layers designed for optical in-well pumping where the pump absorption at pump wavelengths between 1 µm and 2 µm takes place exclusively in the active QWs. This concept provides several advantages such as a high modal gain, the suppression of thermal leakage currents, and an improved thermal conductivity of the active region compared to a conventional GaInAsSb/AlGaAsSb active region design. Using the novel design approach an in-well pumped VECSEL emitting at 2.24 µm has been realized, yielding at a heat sink temperature of 20°C in continuous-wave operation a power slope efficiency of more than 32% and an absorption of the 1.96 µm pump light of more than 50% without pump recycling, These data constitute a significant improvement in device performance compared to previously reported data on in-well pumped GaSb-based VECSELs.
Author(s)
Wagner, J.
Fraunhofer-Institut für Angewandte Festkörperphysik IAF
Rösener, B.
Fraunhofer-Institut für Angewandte Festkörperphysik IAF
Schulz, N.
Fraunhofer-Institut für Angewandte Festkörperphysik IAF
Rattunde, M.
Fraunhofer-Institut für Angewandte Festkörperphysik IAF
Moser, R.
Fraunhofer-Institut für Angewandte Festkörperphysik IAF
Manz, C.
Fraunhofer-Institut für Angewandte Festkörperphysik IAF
Köhler, K.
Fraunhofer-Institut für Angewandte Festkörperphysik IAF
Hauptwerk
Quantum sensing and nanophotonic devices VI
Konferenz
Conference "Quantum Sensing and Nanophotonic Devices" 2009
Thumbnail Image
DOI
10.1117/12.807922
Language
English
google-scholar
Fraunhofer-Institut für Angewandte Festkörperphysik IAF
Tags
  • vertical-external-cav...

  • VECSEL

  • optically pumped semi...

  • optisch gepumpte Halb...

  • infrared

  • Infrarot

  • (AlGaIn)(AsSb)

  • Cookie settings
  • Imprint
  • Privacy policy
  • Api
  • Send Feedback
© 2022