Wavefront correction for near diffraction-limited focal spot on a 6x100 J/1-ns laser facility

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

doi:10.1117/12.517964

6 October 2003 Wavefront correction for near diffraction-limited focal spot on a 6×100 J/1-ns laser facility

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

Author Affiliations +

Proceedings Volume 5137, International Conference on Lasers, Applications, and Technologies 2002: Advanced Lasers and Systems; (2003) https://doi.org/10.1117/12.517964
Event: International Conference on Lasers, Applications, and Technologies 2002, 2002, Moscow, Russian Federation

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.

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Julien Fuchs, Benoit F. Wattellier, Ji Ping Zou, Jean-Christophe Chanteloup, H. Bandulet, P. Michel, C. Labaune, S. Depierreux, Alexis V. Kudryashov, and Alexander G. Aleksandrov "Wavefront correction for near diffraction-limited focal spot on a 6×100 J/1-ns laser facility", Proc. SPIE 5137, International Conference on Lasers, Applications, and Technologies 2002: Advanced Lasers and Systems, (6 October 2003); https://doi.org/10.1117/12.517964

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