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Proceedings Paper

Wavefront correction for near diffraction-limited focal spot on a 6x100 J/1-ns laser facility
Author(s): Julien Fuchs; Benoit F. Wattellier; Ji Ping Zou; Jean-Christophe Chanteloup; H. Bandulet; P. Michel; C. Labaune; S. Depierreux; Alexis V. Kudryashov; Alexander G. Aleksandrov
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Paper Abstract

We have implemented on one beam of the LULI six-beam high-energy (6×100 J, 1 ns) Nd:glass laser facility a closed-loop Adaptive Optics (AO) system to compensate for thermal distortions onto the wave front. Using the AO system composed of a dielectric coated deformable mirror and of a wave front sensor, we are able to improve the wave front quality in order to obtain a focal spot close to the diffraction limit. This allows not only to improve the reproducibility of the experiments but also to increase by at least two orders of magnitude the peak intensity as compared with what usual laser smoothing techniques can achieve.

Paper Details

Date Published: 6 October 2003
PDF: 7 pages
Proc. SPIE 5137, International Conference on Lasers, Applications, and Technologies 2002: Advanced Lasers and Systems, (6 October 2003); doi: 10.1117/12.517964
Show Author Affiliations
Julien Fuchs, LULI-CNRS, CEA-Ecole Polytechnique, Univ. Paris VI (France)
Benoit F. Wattellier, LULI-CNRS, CEA-Ecole Polytechnique, Univ. Paris VI (France)
Ji Ping Zou, LULI-CNRS, CEA-Ecole Polytechnique, Univ. Paris VI (France)
Jean-Christophe Chanteloup, LULI-CNRS, CEA-Ecole Polytechnique, Univ. Paris VI (France)
H. Bandulet, LULI-CNRS, CEA-Ecole Polytechnique, Univ. Paris VI (France)
P. Michel, LULI-CNRS, CEA-Ecole Polytechnique, Univ. Paris VI (France)
C. Labaune, LULI-CNRS, CEA-Ecole Polytechnique, Univ. Paris VI (France)
Univ. Pierre et Marie Curie (France)
S. Depierreux, CEA-DIF (France)
Alexis V. Kudryashov, Institute on Laser and Information Technologies (Russia)
Alexander G. Aleksandrov, Institute on Laser and Information Technologies (Russia)


Published in SPIE Proceedings Vol. 5137:
International Conference on Lasers, Applications, and Technologies 2002: Advanced Lasers and Systems
Guenter Huber; Ivan A. Scherbakov; Vladislav Ya. Panchenko, Editor(s)

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