激光二极管抽运低温Yb∶YAG再生放大器  

Laser Diode Pumped Cryogenic Cooled Yb∶YAG Regenerative Amplifier

作　　者：李响[1] 王江峰[1] 李学春[1] 卢兴华[1] 潘雪[1] 黄大杰[1] 

机构地区：[1]中国科学院上海光学精密机械研究所,上海201800

出　　处：《中国激光》2011年第11期58-63,共6页Chinese Journal of Lasers

摘　　要：通过对Yb∶YAG晶体荧光谱线的分析,讨论了其低温条件下的增益特性。利用激光二极管作为抽运源,采用背向端面抽运方式,使用掺杂原子数分数为8%的片状Yb∶YAG晶体,搭建了一台低温条件下工作的再生放大器。通过小能量信号光注入,在-90℃的低温下,可以得到重复频率10Hz,脉宽10ns,能量10.3mJ的激光脉冲输出,放大倍数达107倍。The fluorescence spectrum of Yb：YAG crystal is analyzed and its gain characteristics are discussed. A regenerative amplifier is built, which works under a low temperature. The gain material is Yb： YAG crystal with the doping concentration of 8% back-end pumped by a laser diode. Through a signal pulse injection, we can get a 10.3 mJ laser pulse output with the repetition rate of 10 Hz and the pulse width of 10 ns at - 90℃, and the magnification exceeds 107.

关 键 词：激光器 Yb∶YAG晶体 再生放大器 激光二极管 

分 类 号：TN248.1[电子电信—物理电子学]