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Proceedings Paper

Optical glasses for high-peak-power laser applications
Author(s): Jack H. Campbell; Frank Rainer
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Paper Abstract

Only a limited number of optical glasses are commercially available that can be used in high-fluence laser applications between 0.35 and 1.05 micrometers . These include, primarily, certain phosphate glasses and fused silica. Phosphate glasses can now be made free of Pt-inclusions; the technology leading to this improvement is briefly discussed. In addition, inclusion-free fused silica can be made by a high temperature, chemical-vapor-deposition (CVD) process. Measured damage thresholds over a range of wavelengths and pulse lengths are reported for these materials. In addition, the use of doped layers of plasma CVD fused silica as a means of making high-damage-threshold rugate filters is presented. The impact of a high nonlinear refractive index (n2) on the spatial profile of the laser beam is discussed. Dramatic improvements in laser performance are possible if an inclusion-free, low-n2 glass (such as fluorophosphate) could be made. Multiphoton absorption and solarization of fused silica at 351 nm are also reviewed; fused silica continues to be the preferred material for high fluence applications at this wavelength.

Paper Details

Date Published: 11 January 1993
PDF: 10 pages
Proc. SPIE 1761, Damage to Space Optics, and Properties and Characteristics of Optical Glass, (11 January 1993); doi: 10.1117/12.138931
Show Author Affiliations
Jack H. Campbell, Lawrence Livermore National Lab. (United States)
Frank Rainer, Lawrence Livermore National Lab. (United States)

Published in SPIE Proceedings Vol. 1761:
Damage to Space Optics, and Properties and Characteristics of Optical Glass
James B. Breckinridge; Alexander J. Marker III, Editor(s)

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