High-power optical coatings for a megajoule class ICF laser

Mark R. Kozlowski; Ian M. Thomas; Jack H. Campbell; Frank Rainer

doi:10.1117/12.983267

15 April 1993 High-power optical coatings for a megajoule class ICF laser

Mark R. Kozlowski, Ian M. Thomas, Jack H. Campbell, Frank Rainer

Proceedings Volume 1780, Lens and Optical Systems Design; 17802L (1993) https://doi.org/10.1117/12.983267
Event: Optical Systems Design '92, 1992, Berlin, Germany

Abstract

As a consequence of advancements in Inertial Confinement Fusion research, LLNL is developing plans for a new 1.5 to 2 mega-joule solid-state Nd:glass laser designed to achieve fusion ignition. The new design is possible in part due to advances in optical coatings suitable for highpower laser systems. High damage threshold mirrors and polarizers are comprised of electronbeam deposited dielectric multilayers. Subthreshold illumination, or laser conditioning, of the multilayer coatings results in an increase in the damage thresholds by factors of 2 to 3 at 1.06pm, thus meeting the fluence requirements of the advanced architecture. For anti-reflective coatings, protective organic coatings for non-linear crystals and phase plates for beam smoothing, sol-gel films provide high damage thresholds coatings at low cost.

Citation Download Citation

Mark R. Kozlowski, Ian M. Thomas, Jack H. Campbell, and Frank Rainer "High-power optical coatings for a megajoule class ICF laser", Proc. SPIE 1780, Lens and Optical Systems Design, 17802L (15 April 1993); https://doi.org/10.1117/12.983267

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