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Flattened mode cylindrical and ribbon fibers and amplifiers

United States Patent Application

20040247272
A1
View the Complete Application at the US Patent & Trademark Office
Lawrence Livermore National Laboratory - Visit the Industrial Partnerships Office Website
Large area mode operation of fibers with Strehl-ratio-optimizing flat-topped output beams is enabled. The approach entails both refractive index profile engineering and gain profile engineering to realize fiber structures that while supporting several transverse modes only allow a preferred flat-topped mode to lase due to the modal gain discrimination that is engineered in during the fabrication of the structure.
Dawson, Jay W. (Livermore, CA), Beach, Raymond J. (Livermore, CA), Payne, Stephen A. (Castro Valley, CA), Feit, Michael D. (Livermore, CA), Barty, Christopher P.J. (Hayward, CA), Liao, Zhi M. (Pleasanton, CA)
The Regents of the University of California
10/ 676,905
September 30, 2003
[0002] 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.