Large transmission 1w and 3w gratings for the LIL laser

Jerome Neauport; Philippe Bouchut; Jean Flamand; Geraud de Villele; Yves Josserand; Francis Bonnemason; Bruno M. Touzet; Pierre Garrec; Xavier Ribeyre; Genevieve Chabassier

doi:10.1117/12.451499

26 December 2001 Large transmission 1ω and 3ω gratings for the LIL laser

Jerome Neauport, Philippe Bouchut, Jean Flamand, Geraud de Villele, Yves Josserand, Francis Bonnemason, Bruno M. Touzet, Pierre Garrec, Xavier Ribeyre, Genevieve Chabassier

Author Affiliations +

Proceedings Volume 4438, Physics, Theory, and Applications of Periodic Structures in Optics; (2001) https://doi.org/10.1117/12.451499
Event: International Symposium on Optical Science and Technology, 2001, San Diego, CA, United States

Abstract

To deviate and focus of the beams of the future Laser Integration Line (LIL) and Megajoule laser (LMJ), CEA has chosen an original setup using two large 420 x 470 mm² transmission gratings. The first grating is an holographic plano transmission master grating with straight and equispaced ruling, 25 degree(s) incidence angle and working at 1.053 micrometers . The second one is an holographic plano transmission master grating, with curved and non equispaced ruling, 25 degree(s) incidence angle which combines both focusing and deviation properties. Groove profile of both gratings is deep laminar. High damage threshold, improved wavefront quality and high efficiencies are the main issues for those two gratings. Jobin Yvon's was selected by CEA in 1999 to develop, industrialize and manufacture gratings reaching LIL/LMJ specifications. A dedicated plant and facilities were built to manufacture the gratings directly engraved into the fused silica substrates provided by CEA. After process developments, Jobin Yvon manufactured the two first 1(omega) and 3(omega) gratings in mid 2001. After a short summary of the specification of these gratings, we present in this paper the production process and the performances of the 1(omega) and 3(omega) gratings manufactured. Wavefront data, efficiency measurements and damage threshold performances are detailed.

Citation Download Citation

Jerome Neauport, Philippe Bouchut, Jean Flamand, Geraud de Villele, Yves Josserand, Francis Bonnemason, Bruno M. Touzet, Pierre Garrec, Xavier Ribeyre, and Genevieve Chabassier "Large transmission 1ω and 3ω gratings for the LIL laser", Proc. SPIE 4438, Physics, Theory, and Applications of Periodic Structures in Optics, (26 December 2001); https://doi.org/10.1117/12.451499

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available