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High average power scaleable thin-disk laser

United States Patent

February 12, 2002
View the Complete Patent at the US Patent & Trademark Office
Lawrence Livermore National Laboratory - Visit the Industrial Partnerships Office Website
Using a thin disk laser gain element with an undoped cap layer enables the scaling of lasers to extremely high average output power values. Ordinarily, the power scaling of such thin disk lasers is limited by the deleterious effects of amplified spontaneous emission. By using an undoped cap layer diffusion bonded to the thin disk, the onset of amplified spontaneous emission does not occur as readily as if no cap layer is used, and much larger transverse thin disks can be effectively used as laser gain elements. This invention can be used as a high average power laser for material processing applications as well as for weapon and air defense applications.
Beach; Raymond J. (Livermore, CA), Honea; Eric C. (Sunol, CA), Bibeau; Camille (Dublin, CA), Payne; Stephen A. (Castro Valley, CA), Powell; Howard (Livermore, CA), Krupke; William F. (Pleasanton, CA), Sutton; Steven B. (Manteca, CA)
The Regents of the University of California (Oakland, CA)
09/ 237,142
January 25, 1999
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.