6 June 2002 Influence of thermal lens spherical aberrations on laser performances: intracavity programmable phase control
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Proceedings Volume 4629, Laser Resonators and Beam Control V; (2002); doi: 10.1117/12.469499
Event: High-Power Lasers and Applications, 2002, San Jose, California, United States
Abstract
We investigate the influence of thermally induced spherical aberrations on the fundamental mode of a rod solid-state laser. Results concerning the additional losses and beam quality degradation are presented and point out that for a large volume fundamental mode resonator, a spherical aberration greater than 0.5(lambda) dramatically deteriorates the laser performances. To control the resonator performances, we present a new phase control technique with an intracavity optically addressed liquid-crystal spatial light modulator. The presented Nd:YAG resonator is able to deliver beams with various spatial profiles, as flattop super-Gaussian or square-shaped beams, and is thus potentially able to compensate for the thermally induced aberrations of the laser medium.
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Jerome Bourderionnet, Arnaud Brignon, Jean-Pierre Huignard, Eric Lallier, Brigitte Loiseaux, Robert Frey, "Influence of thermal lens spherical aberrations on laser performances: intracavity programmable phase control", Proc. SPIE 4629, Laser Resonators and Beam Control V, (6 June 2002); doi: 10.1117/12.469499; https://doi.org/10.1117/12.469499
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KEYWORDS
Monochromatic aberrations

Resonators

Rod lasers

Mirrors

Liquid crystals

Laser resonators

Light valves

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