17 November 2010 Aberrations correction of a Nd:YAG slab amplifier using a compact adaptive optics system
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Proceedings Volume 7843, High-Power Lasers and Applications V; 784327 (2010); doi: 10.1117/12.871796
Event: Photonics Asia 2010, 2010, Beijing, China
Abstract
As for master-oscillator-power-amplifier (MOPA) laser systems, Aberrations generated by thermal effects, the mirrors surface and optical elements play important roles to deteriorate laser beam quality. To obtain good beam performance, a compact adaptive optics (AO) system for a Nd:YAG zigzag slab amplifier is built. A rectangular tilt mirror (DM) and a 39-element rectangular piezoelectric deformable mirror in combination with a stochastic parallel gradient descent (SPGD) algorithm is introduced for aberrations correction. Experimental results demonstrate that the output beam quality can enhanced greatly at different power level when the AO system is in operation.
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Ping Yang, Xiang Lei, Yu Ning, Lizhi Dong, Wenjing Liu, Bing Xu, "Aberrations correction of a Nd:YAG slab amplifier using a compact adaptive optics system", Proc. SPIE 7843, High-Power Lasers and Applications V, 784327 (17 November 2010); doi: 10.1117/12.871796; https://doi.org/10.1117/12.871796
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KEYWORDS
Adaptive optics

Optical amplifiers

Nd:YAG lasers

Aberration correction

Actuators

Laser systems engineering

Mirrors

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