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Proceedings Paper

Low-cost adaptive optical system for a diode-pumped YAG solid-state laser system
Author(s): Ping Yang; Mingwu Ao; Yuan Liu; Shijie Hu; Bing Xu; Wenhan Jiang
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Paper Abstract

A low cost adaptive optical system for improving solid-state laser beam quality has been set up. This system consists of a deformable mirror, a high voltage amplifier, a set of solid-state laser system, a CCD camera, a control software and corresponding optimization algorithm. This adaptive optical system doesn't employ a wave-front sensor to detect the phase information, but optimize the light intensity within a fixed aperture in the focal plane by a 19-element piezoelectricity deformable mirror. In order to find the optimum surface profile of the deformable mirror, which is applied to correct the phase aberrations in a solid-state laser system, a global genetic algorithm is introduced. The far-field light intensity signal, which is measured by a CCD camera, is used as a fitness function of the genetic algorithm. In this paper, the performance and efficiency of this wave-front sensor-less adaptive optical system based on the genetic algorithm are presented. Both the simulation results and the experimental results are given and discussed.

Paper Details

Date Published: 6 February 2008
PDF: 8 pages
Proc. SPIE 6823, High-Power Lasers and Applications IV, 68231I (6 February 2008); doi: 10.1117/12.755242
Show Author Affiliations
Ping Yang, Institute of Optics and Electronics (China)
Graduate School of the Chinese Academy of Sciences (China)
Mingwu Ao, Institute of Optics and Electronics (China)
Graduate School of the Chinese Academy of Sciences (China)
Yuan Liu, Institute of Optics and Electronics (China)
Graduate School of the Chinese Academy of Sciences (China)
Shijie Hu, Institute of Optics and Electronics (China)
Bing Xu, Institute of Optics and Electronics (China)
Wenhan Jiang, Institute of Optics and Electronics (China)


Published in SPIE Proceedings Vol. 6823:
High-Power Lasers and Applications IV
Dianyuan Fan; Robert F. Walter, Editor(s)

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