Sol-gel optical coatings for lasers, 3

Journal Article · Fri Dec 01 04:00:00 EST 1995 · American Ceramic Society Bulletin

OSTI ID:170268

Floch, H G; Belleville, P F; Priotton, J J ^[1]; Pegon, P M; Dijonneau, C S; Guerain, J ^[2]

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1. CEA-Centre d`Etudes de Limeil-Valenton, Villeneuve-Saint Georges (France). Dept. of Lasers and Plasma Physics
2. Reosc Optique-Groupe SFIM, Ballainvilliers (France)

The planned megajoule-class neodymium-glass laser system will be the world`s largest. The proposed CEL-V design, based on the use of 240 beams, will use 50--150 times more optical material than did Phebus. Almost 10,000 m{sup 2} of coated area are required for optical coatings; this is a factor of almost 500 increase over Phebus. Lens, flashlamp, blastshield, harmonic converter, debris shield, window and cavity-end mirror coatings by the sol-gel process represent >96% of the entire coated area. The remaining <4% are high-rejection-ratio polarizers, pick-off cavity mirrors and transport mirrors. Cost estimates show that, for coating deposition, the sol-gel technique provides considerable saving compared to the more conventional e-beam deposition technique. Highly reflective and polarizing sol-gel-derived optical coatings have been prepared and tested for the proposed French megajoule neodymium-glass laser. Laser damage studies are reported here.

• OSTI ID: 170268
• Journal Information: American Ceramic Society Bulletin, Journal Name: American Ceramic Society Bulletin Journal Issue: 12 Vol. 74; ISSN 0002-7812; ISSN ACSBA7
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
DAMAGE
ICF DEVICES
INERTIAL CONFINEMENT
NEODYMIUM LASERS
OPTICAL SYSTEMS
PERFORMANCE TESTING
PHEBUS FACILITY
REFLECTIVE COATINGS
SOL-GEL PROCESS