Thermally Induced Beam Distortions in Sesquioxide Laser Ceramics of m3 Crystal Class—Part II

摘要

In the first part of this paper, thermally induced polarization and phase distortions of a laser beam in cubic ceramics were calculated considering the specific features of photoelastic properties of 23 and m3 crystal classes. Here we use these quantities to calculate Strehl ratio and the integral of overlapping of the input and output beams both on passing one ceramic element as well as at the output of the scheme with the compensation of birefringence. The depolarization degree and the overlap integral are then compared with the distortions calculated earlier using the Rayleigh–Debye scattering theory method. The relative value of the distortion components inherent to 23 and m3 ceramics is assessed.