Pulsed pumping of semiconductor disk lasers

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

Research output: Contribution to journalArticle

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Abstract

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
Pages (from-to)3247 -3256
JournalOptics Express
Volume15
Issue number6
DOIs
Publication statusPublished - 19 Mar 2007

Keywords

  • diode-pumped lasers
  • pumping
  • semiconductor lasers
  • thermal effects

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