Aberration Caused by Thermal Effects of Solid-state Lasers

Abstract

The aberration caused by thermal effect in the solid state lasers was measured by use of Shack-Hartmann wave front detector. The drawbacks in theoretical calculation were modified by comparison between the experimental results and the theoretical results. The thermal effect in the solid state lasers and the aberration caused by thermal effects were analyzed. On the basis of the analysis of thermal effects, dynamic thermal distortion caused by thermal effects in the solid state lasers was calculated and showed in the forms of aberration. Piston and Defocusing were merely included in the forms of aberration and other forms of aberration were not existed. By the analysis of results in the measurements of the aberration in solid state lasers, the dynamic thermal distortion caused by the thermal effects in the solid state lasers was obtained experimently. The dynamic thermal distortion was showed with phase distortion in three dimensions and the forms of aberration were obtained, in which the defocusing was the primary form of aberration.