Abstract
A three-dimensional ray-tracing code for determination of amplified spontaneous emission in a multislab laser amplifier is presented. In addition to energy stored in the amplifier, the code also calculates the heat distribution and the amplification of the signal beam. For cryogenically cooled multislab amplifiers with and absorptive cladding, energy storage efficiency greater than 52% and small signal gain of were obtained. The pump energy converted to heat was found to be 11% in the active volume and 50% in the cladding.
©2012 Optical Society of America
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