摘要

A high polarization Nd:YVO4/KTP laser with dual crossed gain crystal is reported. Using two optical axis orthogonal Nd:YVO4 crystal as gain medium, eliminating the depolarization effect of single Nd:YVO4 crystal, the high polarization green laser is obtained. With 1.8W diode laser pump power the output power of TEM00 green laser is 366 mW, the light-light conversion efficiency is up to 20.3%, and the polarization ratio is 110:1. This laser has the advantages of being simple and easily attainable at a low cost, and it is suitable for batch production.