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22 February 2017 SRS modeling in high power CW fiber lasers for component optimization
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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.
© (2017) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
G. Brochu, A. Villeneuve, M. Faucher, M. Morin, F. Trépanier, and R. Dionne "SRS modeling in high power CW fiber lasers for component optimization", Proc. SPIE 10085, Components and Packaging for Laser Systems III, 100850N (22 February 2017);


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