中国激光, 2009, 36 (7): 1831, 网络出版: 2009-07-16
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
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/cm2) 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%。
Abstract
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/cm2), 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%.
蒋东镔, 段文涛, 徐美健, 蒋新颖, 於海武, 李明中. 高功率激光二极管端面抽运重复频率Yb∶YAG激光器[J]. 中国激光, 2009, 36(7): 1831. Jiang Dongbin, Duan Wentao, Xu Meijian, Jiang Xinying, Yu Haiwu, Li Mingzhong. High-Power Laser Diode End-Pumped Yb∶YAG Repeat Frequency Laser[J]. Chinese Journal of Lasers, 2009, 36(7): 1831.