Pulsed pumping of a 2.3um InGaAsSb semiconductor disk laser

N. Hempler, J.M. Hopkins, A. Kemp, M.D. Dawson, D. Burns, N. Schulz, M. Rattunde, J. Wagner

Research output: Contribution to conferencePaperpeer-review


Efficient operation of semiconductor disk lasers is demonstrated using uncooled and inexpensive 905nm high-power pulsed semiconductor pump lasers. Laser emission, with a peak power of 1.7W, is obtained from a 2.3μm semiconductor disk laser. This is seven times the power achieved under continuous pumping. Analysis of the time-dependent spectral characteristics of the laser demonstrate that significant device heating occurs over the 100-200ns duration of the pumping pulse - finite element modelling of the thermal processes is undertaken in support of these data. Spectral narrowing to below 0.8nm is obtained by using an intra-cavity birefringent filter.
Original languageEnglish
Publication statusPublished - 2007
EventConference on Lasers and Electro-Optics - Baltimore, United States
Duration: 6 May 20077 May 2007


ConferenceConference on Lasers and Electro-Optics
Abbreviated titleCLEO 2007
CountryUnited States


  • semiconductor lasers
  • optical pumping
  • lasers
  • diodepumped
  • optics
  • optoelectronics

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