Development of resonators for high-power CO 2 lasers

Abstract

A brief review is made for the schemes of optical resonators for the generation of a high-quality beam in high-power CO 2 lasers. The main results of the self-filtering resonator application in the industrial laser are presented. The selffiltering resonator is compared to the stable resonator by the output beam characteristics, aberration sensitivity, and laser cut characteristics by the example of steel cutting.