Output performance of solid state heat capacity laser with ctiv-mirror and dichromatic coatings

In order to avoid the dynamic thermal-induced depolarization losses which relates to Brewster-angle scheme solid-state heat capacity laser, a laser with a V-shaped active-mirror configuration is developed and tested, using high-quality dichromatic coatings. The transmissivity of pump light is greater than 95% and the reflectivity of laser is greater than 99.7% on the same coating. The output fell down limitedly by time in the condition of repetitive operation with 1 ms pulse, and a pulsed energy output of 47 J was generated with 5 ms pulse width and 9.4 kW peak power. The measured results agree with the calculated ones(10.11 kW) in the same condition as the experiment.