Chinese Journal of Lasers, Volume. 36, Issue 7, 1831(2009)
High-Power Laser Diode End-Pumped Yb∶YAG Repeat Frequency Laser
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%.
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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