Mathematical modeling of the beam spatial distribution for the laser with ceramic active elements

Abstract

Numerical calculations of the formation of the radiation spatial distribution in the near field by laser amplifiers of pulsed solid-state lasers are performed. On the basis of mathematical modeling, a method is proposed for ensuring spatial homogeneity of laser radiation, based on the use of ceramic active elements with a non-uniform distribution of population inversion over the active element cross-section. The method allows for increasing the spatial homogeneity of laser beams of amplifiers operating in the saturated gain mode.