窄脉冲宽调谐调QCr:LiSAF激光器及其应用研究  

Narrow-pulse Q-switched Tunable Cr∶LiSAF Laser and Its Application

作　　者：洪伟 贺渝龙[1] 是度芳[1] 王正林 谢建平[3] 

机构地区：[1]华中理工大学物理系,武汉430074 [2]中国科学院安徽光机所,合肥230031 [3]中国科技大学物理系,合肥230029

出　　处：《中国激光》2000年第4期293-297,共5页Chinese Journal of Lasers

摘　　要：研究了窄脉冲宽调谐调 QCr:Li SAF激光器的输出特性 ,在峰值波长 850 nm附近获得了单脉冲能量为 2 1 4 m J,脉宽为 2 0 ns的稳定调 Q输出 ,线宽小于 0 .2 nm。分析了 Cr:Li SAF激光器中影响调 Q的因素和晶体损伤问题 ,研究了基于 Cr:LiA narrow pulse Q switched tunable Cr∶LiSAF laser is reported in this paper. Stable Q switched output was obtained at 850 nm with energy of 214 mJ per pulse and pulse width of 20 ns (FWHM) and linewidth less then 0.2 nm. The factors inducing damage of the Cr∶LiSAF crystal were discussed, and a dual wavelength tunable laser based on Cr∶LiSAF is studied which can be used in DIAL (differential absorption lidar ) system.

关 键 词：Cr:LiSAE 调Q 窄脉冲宽调谐 激光器 

分 类 号：TN248[电子电信—物理电子学]