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Proceedings Paper

Influence of thermal lens spherical aberrations on laser performances: intracavity programmable phase control
Author(s): Jerome Bourderionnet; Arnaud Brignon; Jean-Pierre Huignard; Eric Lallier; Brigitte Loiseaux; Robert Frey
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Paper 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.

Paper Details

Date Published: 6 June 2002
PDF: 6 pages
Proc. SPIE 4629, Laser Resonators and Beam Control V, (6 June 2002); doi: 10.1117/12.469499
Show Author Affiliations
Jerome Bourderionnet, Thales (France)
Arnaud Brignon, Thales (France)
Jean-Pierre Huignard, Thales (France)
Eric Lallier, Thales (France)
Brigitte Loiseaux, Thales (France)
Robert Frey, Univ. Paris-Sud (France)

Published in SPIE Proceedings Vol. 4629:
Laser Resonators and Beam Control V
Alexis V. Kudryashov, Editor(s)

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