摘要
A successful beam cleanup of a 5-mJ/200-μs pulsed solid-state laser system operating at 532-nm wavelength is demonstrated. In this beam cleanup system, a wave-front sensor-less adaptive optics （AO） system is set up with a 20-element bimorph mirror （BM）, a high-voltage amplifier, a chaxge-coupled device camera, and a control software implementing the stochastic parallel gradient descent （SPGD） algorithm. The brightness of the laser focal spot is improved because the wave-front distortions have been compensated. The performance of this system is presented and the experimental results are analyzed.
A successful beam cleanup of a 5-mJ/200-μs pulsed solid-state laser system operating at 532-nm wavelength is demonstrated. In this beam cleanup system, a wave-front sensor-less adaptive optics （AO） system is set up with a 20-element bimorph mirror （BM）, a high-voltage amplifier, a chaxge-coupled device camera, and a control software implementing the stochastic parallel gradient descent （SPGD） algorithm. The brightness of the laser focal spot is improved because the wave-front distortions have been compensated. The performance of this system is presented and the experimental results are analyzed.
基金
supported by the National Natural Science Foundation of China (Nos.60978049 and 10974202)
the Innovation Science Fund of Chinese Academy of Sciences (No.CXJJ-10-S01)
the Western Light Talent Cultivation Program of Chinese Academy of Sciences (No.A09k005)
supported by the Open Research Fund of Key Laboratory of Functional Crystals and Laser Technology,TIPC,CAS
