Investigation of amplified radiation wavefront distortions in a cryogenically cooled laser amplifier
Petrov V.A.1,2, Petrov V.V.1,2,3, Kuptsov G.V.1,2, Kuptsova A.O.1,3
1Institute of Laser Physics of the Siberian Branch of Russian Academy of Sciences, Novosibirsk, Russia
2Novosibirsk State Technical University, Novosibirsk, Russia
3Novosibirsk State University, Novosibirsk, Russia
Email: petrov.nstu@gmail.com
Thermal and electronic contributions to wavefront distortions of radiation amplified in the cryogenically cooled amplifier have been investigated using the laser scanning technique. The optical path difference profile introduced for amplified radiation with the pulse repetition rate of 200-1000 Hz and pump radiation peak power of 200 W have been analyzed. Keywords: diode pumping, high pulse repetition rate, cryogenic temperatures, wavefront distortions.
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