高功率激光二极管端面抽运重复频率Yb:YAG激光器  

High-Power Laser Diode End-Pumped Yb:YAG Repeat Frequency Laser

作　　者：蒋东镔[1] 段文涛[1] 徐美健[1] 蒋新颖[1] 於海武[1] 李明中[1] 

机构地区：[1]中国工程物理研究院激光聚变研究中心,四川绵阳621900

出　　处：《中国激光》2009年第7期1831-1834,共4页Chinese Journal of Lasers

摘　　要：采用940 nm InGaAs激光二极管(LD)阵列端面抽运片状Yb:YAG晶体,谐振腔采用V形有源镜构型,实现了1030 nm红外激光输出。实验中分别测试了激光器在不同重复频率(1 Hz,2 Hz,5 Hz,10 Hz)条件下的激光输出特性。当输出耦合镜的反射率为73%,在抽运能量为7.6 J(功率密度为13 kW/cm3)时,1 Hz重复频率输出稳定运行于2.43 J,光-光转换效率为32%,斜率效率为54.5%;10 Hz重复频率输出稳定运行于1.76 J,光-光转换效率为23.2%,斜率效率为43.3%。A 940 nm InGaAs laser diode （LD） array end-pumped Yb ： YAG disk laser has been demonstrated, chosing V-shape stable resonator with active-mirror configuration. The infrared laser output at 1030 nm is obtained. The output performance of the laser under different repeat frequencies （1 Hz, 2 Hz, 5 Hz, 10 Hz） is experimentally tested. With output mirror reflectivity of 73% and pump energy of 7.6 J （power of 13 kW/cm^2）, the output energy of 2.43 J is obtained with repeat frequency of 1 Hz, the optical-optical efficiency is 32% and the slope efficiency is 54.5 %; the output energy of 1.76 J is obtained with repeat frequency of 10 Hz, the optical-optical efficiency is 23.2% and the slope efficiency is 43.3%.

关 键 词：激光器 YB:YAG晶体 激光二极管阵列 端面抽运 重复频率 

分 类 号：TN248.1[电子电信—物理电子学]