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Proceedings Paper

SRS modeling in high power CW fiber lasers for component optimization
Author(s): G. Brochu; A. Villeneuve; M. Faucher; M. Morin; F. Trépanier; R. Dionne
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Paper Abstract

A CW kilowatt fiber laser numerical model has been developed taking into account intracavity stimulated Raman scattering (SRS). It uses the split-step Fourier method which is applied iteratively over several cavity round trips. The gain distribution is re-evaluated after each iteration with a standard CW model using an effective FBG reflectivity that quantifies the non-linear spectral leakage. This model explains why spectrally narrow output couplers produce more SRS than wider FBGs, as recently reported by other authors, and constitute a powerful tool to design optimized and innovative fiber components to push back the onset of SRS for a given fiber core diameter.

Paper Details

Date Published: 22 February 2017
PDF: 10 pages
Proc. SPIE 10085, Components and Packaging for Laser Systems III, 100850N (22 February 2017); doi: 10.1117/12.2248336
Show Author Affiliations
G. Brochu, TeraXion Inc. (Canada)
A. Villeneuve, Optav Solutions Inc. (Canada)
M. Faucher, TeraXion Inc. (Canada)
M. Morin, TeraXion Inc. (Canada)
F. Trépanier, TeraXion Inc. (Canada)
R. Dionne, TeraXion Inc. (Canada)

Published in SPIE Proceedings Vol. 10085:
Components and Packaging for Laser Systems III
Alexei L. Glebov; Paul O. Leisher, Editor(s)

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