Pulsed pumping of a 2.3um InGaAsSb semiconductor disk laser

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Hempler, N. and Hopkins, J.M. and Kemp, A. and Dawson, M.D. and Burns, D. and Schulz, N. and Rattunde, M. and Wagner, J. (2007) Pulsed pumping of a 2.3um InGaAsSb semiconductor disk laser. In: Conference on Lasers and Electro-Optics, 2007-05-06 - 2007-05-07.

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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.

ORCID iDs

Hempler, N., Hopkins, J.M., Kemp, A. ORCID logoORCID: https://orcid.org/0000-0002-1076-3138, Dawson, M.D. ORCID logoORCID: https://orcid.org/0000-0002-6639-2989, Burns, D., Schulz, N., Rattunde, M. and Wagner, J.;
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