Design of PETAL project main amplifier

T. Berthier; N. Blanchot; L. Espert; J. P. Lasserre; E. Perrot Minnot; A. Roques

doi:10.1117/12.807098

27 February 2009 Design of PETAL project main amplifier

T. Berthier, N. Blanchot, L. Espert, J. P. Lasserre, E. Perrot Minnot, A. Roques

Proceedings Volume 7193, Solid State Lasers XVIII: Technology and Devices; 71932E (2009) https://doi.org/10.1117/12.807098
Event: SPIE LASE: Lasers and Applications in Science and Engineering, 2009, San Jose, California, United States

Abstract

A multi petawatt high energy power chain is under construction at CEA-CESTA for the PETAL (PETawatt Aquitaine Laser) project within the LIL facility. It requires an Nd: glass high energy Amplifier, with sixteen 757 mm x 402 mm aperture laser slabs to increase the injected chirped pulse (44 mJ) up to 6.4 kJ. To take account of the PETAL project requirements, optical, electrical, mechanical and cooling optimizations have been performed to design this amplifier system, divided into two parts sized approximately 1.2 m x 1.2 m x 8m. The solutions adopted made it possible to control the laser gain over the full aperture, to obtain a 15 μrad mechanical stability for each laser slab with predicted vibratory PSD and approximately a 1 hour period for laser cooling.

Citation Download Citation

T. Berthier, N. Blanchot, L. Espert, J. P. Lasserre, E. Perrot Minnot, and A. Roques "Design of PETAL project main amplifier", Proc. SPIE 7193, Solid State Lasers XVIII: Technology and Devices, 71932E (27 February 2009); https://doi.org/10.1117/12.807098

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