Metrology of focusing gratings and continuous phase plates for LIL and LMJ lasers

Vincent Beau; Denis Valla; Jerome Daurios; Jerome Neauport; Geraud de Villele; Jean Flamand

doi:10.1117/12.512829

26 February 2004 Metrology of focusing gratings and continuous phase plates for LIL and LMJ lasers

Vincent Beau, Denis Valla, Jerome Daurios, Jerome Neauport, Geraud de Villele, Jean Flamand

Proceedings Volume 5252, Optical Fabrication, Testing, and Metrology; (2004) https://doi.org/10.1117/12.512829
Event: Optical Systems Design, 2003, St. Etienne, France

Abstract

French Megajoules laser (LMJ) and Ligne d'Integration Laser (LIL) are two high power lasers using large diffractive components for focal spot conditioning. Those components are a 420x470 mm² focusing grating and a 398x383 mm² continuous phase plate (CPP), both working at wavelength 0.351 μm. In order to control the tight specifications that have to meet those components, CEA and company Jobin-Yvon, in charge of their manufacturing, have developed specific setups. After a brief introduction describing specifications and requirements, we will present the different setups and analysis software used and finally discuss the different measurements that could be done.

Citation Download Citation

Vincent Beau, Denis Valla, Jerome Daurios, Jerome Neauport, Geraud de Villele, and Jean Flamand "Metrology of focusing gratings and continuous phase plates for LIL and LMJ lasers", Proc. SPIE 5252, Optical Fabrication, Testing, and Metrology, (26 February 2004); https://doi.org/10.1117/12.512829

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