Optimization of high peak, high average power laser amplifier with cryogenic cooling

A numerical three-dimensional non-stationary model describing laser amplification process with account of the dependencies of properties of active element on temperature distribution was developed. A numerical simulation of the laser amplification process in cryogenically cooled high peak, high average power amplifier was performed and it is shown that optimization of pump parameters allows one to obtain up to 50% more energy at the output of the amplifier.