介绍了一种能大幅降低Nd:YAG激光器热负载的新技术——低热抽运技术,该技术将斯托克斯频移减到最小,完全消除了量子效率损耗,从根源上最大限度地减少了系统的热负载,有利于进一步提高输出功率和改善光束质量。简述了低热抽运的发展概况,对其技术关键进行了理论分析,并探讨了其发展前景。

Low-heat pumping scheme was introduced,which can reduce heat generation in Nd:YAG lasers evidently.It can improve the output and beam quality of a solid laser due to the reduction of residual inside heat.The key technology was analyzed theoretically,its development was summarized,and the foreground of the development was discussed.