Low-cost adaptive optical system for a diode-pumped YAG solid-state laser system

Ping Yang; Mingwu Ao; Yuan Liu; Shijie Hu; Bing Xu; Wenhan Jiang

doi:10.1117/12.755242

6 February 2008 Low-cost adaptive optical system for a diode-pumped YAG solid-state laser system

Ping Yang, Mingwu Ao, Yuan Liu, Shijie Hu, Bing Xu, Wenhan Jiang

Proceedings Volume 6823, High-Power Lasers and Applications IV; 68231I (2008) https://doi.org/10.1117/12.755242
Event: Photonics Asia 2007, 2007, Beijing, China

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.

Citation Download Citation

Ping Yang, Mingwu Ao, Yuan Liu, Shijie Hu, Bing Xu, and Wenhan Jiang "Low-cost adaptive optical system for a diode-pumped YAG solid-state laser system", Proc. SPIE 6823, High-Power Lasers and Applications IV, 68231I (6 February 2008); https://doi.org/10.1117/12.755242

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KEYWORDS

Adaptive optics

Nd:YAG lasers

Solid state lasers

YAG lasers

Laser systems engineering

Deformable mirrors

Genetic algorithms

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