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Proceedings Article

Determination of SBS-induced damage limits in large fused silica optics for intense, time-varying laser pulses

[+] Author Affiliations
Demos T. Kyrazis, Timothy L. Weiland

Lawrence Livermore National Lab. (USA)

Proc. SPIE 1441, Laser-Induced Damage in Optical Materials: 1990, 469 (June 1, 1991); doi:10.1117/12.27552
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From Conference Volume 1441

  • Laser-Induced Damage in Optical Materials: 1990
  • Harold E. Bennett; Lloyd L. Chase; Arthur H. Guenther; Brian E. Newnam; M. J. Soileau
  • Boulder, United States | October 01, 1990

abstract

The propagation of intense 3rd harmonic light (0351 μm) through large optical components of the Nova laser results in fracture damage of the center of the component. This damage is caused by an intense acoustical wave brought to focus in the center by reflecting off the circular edge of the optic. The source of this wave is light generated by transverse stimulated Brillouin scattering (SBS). By taking into account the transient gain characteristics of the SBS, we can correctly predict the pulse energy that would cause damage for any time variation in intensity in the pump beam, and predict the relative intensity of the Brillouin light. Our model is based on the transient behavior of a first order linear system.

© (1991) COPYRIGHT SPIE--The International Society for Optical Engineering. Downloading of the abstract is permitted for personal use only.
Citation

Demos T. Kyrazis and Timothy L. Weiland
"Determination of SBS-induced damage limits in large fused silica optics for intense, time-varying laser pulses", Proc. SPIE 1441, Laser-Induced Damage in Optical Materials: 1990, 469 (June 1, 1991); doi:10.1117/12.27552; http://dx.doi.org/10.1117/12.27552


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