We present a hybrid adaptive optics system for a kW-class solid-state slab master oscillator power amplifier laser that consists of both a low-order aberration corrector and a 59-actuator deformable mirror. In this system large defocus and astigmatism of the beam are first corrected by the low-order aberration corrector and then the remaining components are compensated by the deformable mirror. With this sequential procedure it is practical to correct the phase distortions of the beam (peak to valley up to 100 mu m) and the beam quality fi is successfully improved to 1.9 at full power.
1.Chinese Acad Sci, Key Lab Adapt Opt, Chengdu 610209, Peoples R China 2.Chinese Acad Sci, Inst Opt & Elect, Chengdu 610209, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 4.Inst North Opt & Elect, Beijing 100015, Peoples R China
Lai, Boheng,Dong, Lizhi,Chen, Shanqiu,et al. Hybrid adaptive optics system for a solid-state zigzag master oscillator power amplifier laser system[J]. CHINESE OPTICS LETTERS,2016,14(9).