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Proceedings Paper

SBS mitigation with multi-tone amplification: a theoretical model
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Paper Abstract

Two approaches to two- and three-tone seeding of high power ytterbium-doped fiber amplifiers are investigated using a symbolic and numerical code that solves a two point boundary problem consisting of a 12×12 system of nonlinear differential equations. Optimization of amplifier action is considered in relation to the two most dominant nonlinear effects: stimulated Brillouin scattering and four-wave mixing. One approach uses a large wavelength separation among the input seed beams, while in the other approach the seeds are separated by precisely twice the Brillouin shift. It is found that for both techniques significant increase in amplifier output can be obtained, although for the latter case a substantial amount of power is generated in the four-wave mixing sidebands.

Paper Details

Date Published: 22 April 2009
PDF: 9 pages
Proc. SPIE 7131, XVII International Symposium on Gas Flow, Chemical Lasers, and High-Power Lasers, 71310Y (22 April 2009); doi: 10.1117/12.815358
Show Author Affiliations
Clint Zeringue, Air Force Research Lab. (United States)
Iyad Dajani, Air Force Research Lab. (United States)
T. Justin Bronder, Air Force Research Lab. (United States)
Thomas Shay, Air Force Research Lab. (United States)
Craig Robin, Air Force Research Lab. (United States)


Published in SPIE Proceedings Vol. 7131:
XVII International Symposium on Gas Flow, Chemical Lasers, and High-Power Lasers

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