Greatly Improved Stability of Passively Q-Switched Ce:Nd:YAG Laser by Using Corner Cube Prism

摘要

In order to solve the hard problem of laser instability, a miniature Cr4+:YAG Q-switched Ce:Nd:YAG laser with a retroreflecting corner cube prism is demonstrated. The corner cube prism is insen-sitive to misalignment in any direction. Laser cavity with the prism is found to meet the condition of violent change of environment temperature and the variation of thermal lens of laser crystal by our experiment. Compared with flat-flat cavity, stability of the laser with a retroreflecting corner cube prism is improved remarkably.