Research on the mechanism of high power solid laser

Abstract

A laser resonator with a concave lens is designed to solve the thermal lens effect, in order to obtain the 1064nm laser with high power and high beam quality. At first we analyzed the selection of the compensation lens. Then high power laser beams are obtained with a Nd:YAG laser resonator we designed. So an output power of 48W at 1064nm is obtained, when the concave focus is 250mm and the output mirror transmittance is 20%,.