New approach to creation of stable and unstable active resonators for high-power solid state lasers

Victor V. Apollonov; Sergue A. Chetkin; Victor I. Kislov; Gleb V. Vdovin

doi:10.1117/12.46887

1 October 1991 New approach to creation of stable and unstable active resonators for high-power solid state lasers

Victor V. Apollonov, Sergue A. Chetkin, Victor I. Kislov, Gleb V. Vdovin

Proceedings Volume 1502, Industrial and Scientific Uses of High-Power Lasers; (1991) https://doi.org/10.1117/12.46887
Event: ECO4 (The Hague '91), 1991, The Hague, Netherlands

Abstract

Control of laser radiation characteristics using deformable resonator mirrors is considered on the basis of operator equation, which leads to several deterministic algorithms. Algorithms for control of unstable resonator loss, output intensity, and phase distributions are derived within the developed theory. In this framework, heat lens compensation in the Fabry-Perot resonator of a solid-state laser and control of output beam divergency is considered. For solving this problem a single-channel active mirror was designed and investigated. Active control of 60 W multimode repetitive-rate YAG:Nd3+ laser resulted in radiation brightness increasing with a 2 - 5 ratio and in energy distribution and mode structure improvement. Experimentally measured efficiency of control is in good qualitative agreement with developed theory.

Citation Download Citation

Victor V. Apollonov, Sergue A. Chetkin, Victor I. Kislov, and Gleb V. Vdovin "New approach to creation of stable and unstable active resonators for high-power solid state lasers", Proc. SPIE 1502, Industrial and Scientific Uses of High-Power Lasers, (1 October 1991); https://doi.org/10.1117/12.46887

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