SBS mitigation with multi-tone amplification: a theoretical model

Clint Zeringue; Iyad Dajani; T. Justin Bronder; Thomas Shay; Craig Robin

doi:10.1117/12.815358

21 April 2009 SBS mitigation with multi-tone amplification: a theoretical model

Clint Zeringue, Iyad Dajani, T. Justin Bronder, Thomas Shay, Craig Robin

Proceedings Volume 7131, XVII International Symposium on Gas Flow, Chemical Lasers, and High-Power Lasers; 71310Y (2009) https://doi.org/10.1117/12.815358
Event: XVII International Symposium on Gas Flow and Chemical Lasers and High Power Lasers, 2008, Lisboa, Portugal

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.

Citation Download Citation

Clint Zeringue, Iyad Dajani, T. Justin Bronder, Thomas Shay, and Craig Robin "SBS mitigation with multi-tone amplification: a theoretical model", Proc. SPIE 7131, XVII International Symposium on Gas Flow, Chemical Lasers, and High-Power Lasers, 71310Y (21 April 2009); https://doi.org/10.1117/12.815358

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