High-rate and low-cost production of very large flat optical debris shields for the French Megajoule laser project

Thierry Garret; Genevieve Chabassier; Andre Roussel

doi:10.1117/12.294272

8 December 1997 High-rate and low-cost production of very large flat optical debris shields for the French Megajoule laser project

Thierry Garret, Genevieve Chabassier, Andre Roussel

Author Affiliations +

Proceedings Volume 3047, Solid State Lasers for Application to Inertial Confinement Fusion: Second Annual International Conference; (1997) https://doi.org/10.1117/12.294272
Event: Second International Conference on Solid State Lasers for Application to ICF, 1996, Paris, France

Abstract

Sfim ODS is involved in the French Megajoule Project managed by the Commissariat a l'Energie Atomique. It is a high power UV-laser using 240 square beams (410 mm X 410 mm). Sfim ODS achieved a technical and economical analysis concerning the production of flat-parallel debris-shields in silica (430 X 430 X 6 mm, transmitted wavefront: (lambda) /2, 2 500 shields/year) using large and specific dual-side fine- grinding and polishing machines. This analysis was supported by trials using half-scale windows (same stiffness equals> thickness equals 1.7 mm) showing the ability to reach the specifications with low production costs.

Citation Download Citation

Thierry Garret, Genevieve Chabassier, and Andre Roussel "High-rate and low-cost production of very large flat optical debris shields for the French Megajoule laser project", Proc. SPIE 3047, Solid State Lasers for Application to Inertial Confinement Fusion: Second Annual International Conference, (8 December 1997); https://doi.org/10.1117/12.294272

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