Skip to Content
Find More Like This
Return to Search

Stimulated Brillouin scattering mirror system, high power laser and laser peening method and system using same

United States Patent

April 24, 2007
View the Complete Patent at the US Patent & Trademark Office
Lawrence Livermore National Laboratory - Visit the Industrial Partnerships Office Website
A laser system, such as a master oscillator/power amplifier system, comprises a gain medium and a stimulated Brillouin scattering SBS mirror system. The SBS mirror system includes an in situ filtered SBS medium that comprises a compound having a small negative non-linear index of refraction, such as a perfluoro compound. An SBS relay telescope having a telescope focal point includes a baffle at the telescope focal point which blocks off angle beams. A beam splitter is placed between the SBS mirror system and the SBS relay telescope, directing a fraction of the beam to an alternate beam path for an alignment fiducial. The SBS mirror system has a collimated SBS cell and a focused SBS cell. An adjustable attenuator is placed between the collimated SBS cell and the focused SBS cell, by which pulse width of the reflected beam can be adjusted.
Dane; C. Brent (Livermore, CA), Hackel; Lloyd (Livermore, CA), Harris; Fritz B. (Rocklin, CA)
Metal Improvement Company, LLC (Paramus, NJ)
10/ 766,635
January 28, 2004
GOVERNMENT CONTRACT INFORMATION The United States Government has rights in this invention pursuant to Contract No. W-7405-ENG-48 between the United States Department of Energy and the University of California for the operation of Lawrence Livermore National Laboratory.