High-speed mode-resolved polarization measurements in TMI-limited Yb-doped fiber amplifiers

Friedrich Möller; Florian Grimm; Gonzalo Palma-Vega; Denny Häßner; Victor Distler; Till Walbaum; Thomas Schreiber

doi:10.1117/12.2650149

9 March 2023 High-speed mode-resolved polarization measurements in TMI-limited Yb-doped fiber amplifiers

Friedrich Möller, Florian Grimm, Gonzalo Palma-Vega, Denny Häßner, Victor Distler, Till Walbaum, Thomas Schreiber

Proceedings Volume 12400, Fiber Lasers XX: Technology and Systems; 124000T (2023) https://doi.org/10.1117/12.2650149
Event: SPIE LASE, 2023, San Francisco, California, United States

Abstract

We present novel high-speed and mode-resolved polarization measurements with PM and non-PM Ytterbium-doped fiber amplifiers up to their TMI thresholds. The implemented full-Stokes polarimetry technique is based on the simultaneous detection of four parallel channels on a high-speed camera. It enables spatially and mode-resolved polarization analysis with sub-ms temporal resolution, allowing to monitor the polarization of individual modes during TMI. We believe that this high-speed mode-resolved polarization measurement technique is highly interesting for the characterization of PM fiber lasers and could help to explore and analyze new TMI mitigation strategies.

Conference Presentation

Citation Download Citation

Friedrich Möller, Florian Grimm, Gonzalo Palma-Vega, Denny Häßner, Victor Distler, Till Walbaum, and Thomas Schreiber "High-speed mode-resolved polarization measurements in TMI-limited Yb-doped fiber amplifiers", Proc. SPIE 12400, Fiber Lasers XX: Technology and Systems, 124000T (9 March 2023); https://doi.org/10.1117/12.2650149

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