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Proceedings Paper

Thermally insensitive laser diode arrays
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Paper Abstract

In this paper we present the use of high power diode arrays, spectrally stabilised using chirped Volume Bragg Gratings as a pump source for a Nd:YAG based laser. The temperature dependant performance of a series of different stabilised diodes, and the side pumped Nd:YAG slab resonator was measured over a 55°C temperature range. The best performing stabilised LDAs exhibited Q-switched output energy consistent over 80% of the temperature range, and drop off by 40% at the higher temperature extremes. Beam parameters of the laser such as divergence were found to drop in combination with input energy. Factors such as spectral drifting of the diodes are also considered and the effect on the resonator is characterised.

Paper Details

Date Published: 6 May 2009
PDF: 10 pages
Proc. SPIE 7325, Laser Technology for Defense and Security V, 73250P (6 May 2009); doi: 10.1117/12.819791
Show Author Affiliations
Andrew White, SELEX GALILEO (United Kingdom)
Gavin Hall, SELEX GALILEO (United Kingdom)
John Barr, SELEX GALILEO (United Kingdom)
Mark McElhinney, Lasertel Inc. (United States)
Prabhu Thiagarajan, Lasertel Inc. (United States)
Chuanshun Cao, Lasertel Inc. (United States)

Published in SPIE Proceedings Vol. 7325:
Laser Technology for Defense and Security V
Mark Dubinskii; Stephen G. Post, Editor(s)

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