介绍了一种采用色散型布儒斯特棱镜扩束器调谐的脉冲钛宝石激光系统,通过泵浦光反馈泵浦,使转换效率提高了～8%；采用色散型布儒斯特棱镜扩束器加光栅(或平面镜)调谐,实现了窄线宽可调谐输出,输出激光能量为23 mJ,转换效率达19%.调谐范围为680～913 nm,输出激光线宽小于0.01 nm。

A pulsed Ti:sapphire laser tuning by a dispersion-Brewster beam-expanding prism is investigated. The coversion efficiency can be improved ～8% by feedback of the pump laser. The established tunable Ti:sapphire laser features a high laser output energy of 23 mJ/pulse,a high laser conversion efficiecy of up to 19%,and a linewidth of less than 0.01 nm.