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4 March 2022 Investigation of TMI in Yb-doped fully-aperiodic large-pitch-fibers using spatially and temporally resolved imaging
Simon L. Christensen, Baptiste Leconte, Marie-Alicia Malleville, Romain Dauliat, Raphaël Jamier, Mattia Michieletto, Mette M. Johansen, Jesper Lægsgaard, Philippe Roy
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Proceedings Volume PC11981, Fiber Lasers XIX: Technology and Systems; PC119810L (2022) https://doi.org/10.1117/12.2614745
Event: SPIE LASE, 2022, San Francisco, California, United States
Abstract
In this work we present investigation of TMI in Yb-doped FA-LPF using spatially and temporally resolved imaging. We present ST-measurements that are clearly describing the system noises and that can be used to optimize amplifier systems in order to mitigate TMI. Comparative TMI measurements between the same FA-LPF in amplifier and laser configuration are also presented. These measurements show similar results with respect to optical efficiencies but large differences with respect to TMI.
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Simon L. Christensen, Baptiste Leconte, Marie-Alicia Malleville, Romain Dauliat, Raphaël Jamier, Mattia Michieletto, Mette M. Johansen, Jesper Lægsgaard, and Philippe Roy "Investigation of TMI in Yb-doped fully-aperiodic large-pitch-fibers using spatially and temporally resolved imaging", Proc. SPIE PC11981, Fiber Lasers XIX: Technology and Systems, PC119810L (4 March 2022); https://doi.org/10.1117/12.2614745
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KEYWORDS
Amplifiers
Fiber amplifiers
Modeling
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