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Proceedings Paper

Higher order mode selection for power scaling in laser resonators using transmitting Bragg gratings
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Paper Abstract

Power scaling using a higher order mode in a ribbon fiber has previously been proposed. However, methods of selecting the higher order mode and converting to a single lobe high brightness beam are needed. We propose using a multiplexed transmitting Bragg grating (MTBG) to convert a higher order mode into a single lobe beam. Using a ribbon fiber with core dimensions of 107.8 μm by 8.3 μm, we use the MTBG to select a higher order mode oscillating within the resonator with 51.4% efficiency, while simultaneously converting the higher order mode to a beam with diffraction limited divergence of 10.2 mrad containing 60% of the total power.

Paper Details

Date Published: 20 May 2015
PDF: 9 pages
Proc. SPIE 9466, Laser Technology for Defense and Security XI, 94660C (20 May 2015); doi: 10.1117/12.2177060
Show Author Affiliations
Brian M. Anderson, CREOL, The College of Optics and Photonics, Univ. of Central Florida (United States)
George Venus, CREOL, The College of Optics and Photonics, Univ. of Central Florida (United States)
Dan Ott, CREOL, The College of Optics and Photonics, Univ. of Central Florida (United States)
Evan Hale, CREOL, The College of Optics and Photonics, Univ. of Central Florida (United States)
Ivan Divliansky, CREOL, The College of Optics and Photonics, Univ. of Central Florida (United States)
Derrek R. Drachenberg, Lawrence Livermore National Lab. (United States)
Jay Dawson, Lawrence Livermore National Lab. (United States)
Mike J. Messerly, Lawrence Livermore National Lab. (United States)
Paul H. Pax, Lawrence Livermore National Lab. (United States)
John B. Tassano, Lawrence Livermore National Lab. (United States)
Leonid B. Glebov, CREOL, The College of Optics and Photonics, Univ. of Central Florida (United States)


Published in SPIE Proceedings Vol. 9466:
Laser Technology for Defense and Security XI
Mark Dubinskii; Stephen G. Post, Editor(s)

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