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Observation of enhanced thermal lensing due to near-Gaussian pump energy deposition in a laser-diode side-pumped Nd:YAG laser

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4 Author(s)
Welford, D. ; Schwartz Electro-Opt. Inc., Concord, MA, USA ; Rines, D.M. ; Dinerman, B.J. ; Martinsen, R.

The authors report operation of a laser-diode side-pumped Nd:YAG laser with a novel pumping geometry that ensures efficient conversion of pump energy into the TEM00 mode. Significant enhancement of thermally induced lensing due to the near-Gaussian energy deposition profile of the pump radiation was observed. An induced lens of approximately 3.2-m focal length was measured at average incident pump powers of only 3.2 W (corresponding to a 0.6 W heat load)

Published in:

Quantum Electronics, IEEE Journal of  (Volume:28 ,  Issue: 4 )