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Proceedings Paper

Design of PETAL project main amplifier
Author(s): T. Berthier; N. Blanchot; L. Espert; J. P. Lasserre; E. Perrot Minnot; A. Roques
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Paper 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.

Paper Details

Date Published: 28 February 2009
PDF: 12 pages
Proc. SPIE 7193, Solid State Lasers XVIII: Technology and Devices, 71932E (28 February 2009); doi: 10.1117/12.807098
Show Author Affiliations
T. Berthier, Commissariat à l'Energie Atomique (France)
N. Blanchot, Commissariat à l'Energie Atomique (France)
L. Espert, Commissariat à l'Energie Atomique (France)
J. P. Lasserre, Commissariat à l'Energie Atomique (France)
E. Perrot Minnot, Commissariat à l'Energie Atomique (France)
A. Roques, Commissariat à l'Energie Atomique (France)


Published in SPIE Proceedings Vol. 7193:
Solid State Lasers XVIII: Technology and Devices
W. Andrew Clarkson; Norman Hodgson; Ramesh K. Shori, Editor(s)

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