中国激光, 2011, 38 (11): 1102010, 网络出版: 2011-10-27
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
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10 Hz，脉宽10 ns，能量10.3 mJ的激光脉冲输出，放大倍数达107倍。
Abstract
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.
李响, 王江峰, 李学春, 卢兴华, 潘雪, 黄大杰. 激光二极管抽运低温Yb:YAG再生放大器[J]. 中国激光, 2011, 38(11): 1102010. Li Xiang, Wang Jiangfeng, Li Xuechun, Lu Xinghua, Pan Xue, Huang Dajie. Laser Diode Pumped Cryogenic Cooled Yb:YAG Regenerative Amplifier[J]. Chinese Journal of Lasers, 2011, 38(11): 1102010.
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