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Proceedings Paper

Very high laser damage resistant HR-coatings prepared by an advanced sputtering technique
Author(s): Stephane E. Seznec; Anne Fornier; C. Cordillot
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Paper Abstract

The CEA Limeil-Valenton Inertial Confinement Fusion (ICF) program is currently addressing, in close collaboration with LLNL, the critical physics and technology issues for demonstrating and exploiting high-gain ICF. We believe that a compelling strategy for our national ICF program is to demonstrate ignition and moderate gain at the beginning of the next century with an upgrade to the existing Phebus laser to provide 1.8 MJ of 0.351- micron light in a nanosecond regime. The proposed MJ-range laser system will consist of 288 optically independent and individually targetable beams each having a final optical aperture of approximately 35 centimeters. While Phebus used a multistage, single-pass amplifier design, the proposed MJ laser will use a single-stage multipass amplifier design so-called L-Turn. In the L-Turn architecture, a laser pulse enters the cavity and makes 4 passes in the resonator using different pathways before being directed out. The pulse reflects off a pick-off 6 x 6 cm square mirror that may withstand very high fluences. (Abstract truncated.)

Paper Details

Date Published: 14 July 1995
PDF: 2 pages
Proc. SPIE 2428, Laser-Induced Damage in Optical Materials: 1994, (14 July 1995); doi: 10.1117/12.213714
Show Author Affiliations
Stephane E. Seznec, Ctr. d'Etudes de Limeil-Valenton (France)
Anne Fornier, Ctr. d'Etudes de Limeil-Valenton (France)
C. Cordillot, Ctr. d'Etudes de Limeil-Valenton (France)

Published in SPIE Proceedings Vol. 2428:
Laser-Induced Damage in Optical Materials: 1994
Harold E. Bennett; Arthur H. Guenther; Mark R. Kozlowski; Brian Emerson Newnam; M. J. Soileau, Editor(s)

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