A high-power diode-pumped Nd:YVO4 slab amplifier with a hybrid resonator

作者:Mao, Y. F.; Zhang, H. L.*; Yuan, J. H.; Hao, X. L.; Xing, J. C.; Xin, J. G.; Jiang, Y.
来源:Laser Physics Letters, 2016, 13(6): 065005.
DOI:10.1088/1612-2011/13/6/065005

摘要

We demonstrated a compact and efficient in-band diode-pumped Nd:YVO4 partially end-pumped slab (Innoslab) nanosecond amplifier based on a hybrid resonator. For the seeder source, a-6 W, 5 ns Q-switched laser with a repetition rate of 30 kHz was obtained with beam quality factors M-2 < 1.3. A beam-shaping system consisting of cylindrical lenses was designed according to the different sizes of the active medium in two orthogonal directions. A maximum average output power of 77 W was obtained. The optical-to-optical efficiency was 27.9%. The beam quality factors M-2 in the unstable and stable directions were 1.52 and 1.36, respectively.