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Determination of thermal load from core temperature measurements in single mode ytterbium-doped fiber amplifiers

: Beier, F.; Heinzig, M.; Walbaum, T.; Kuhn, S.; Hupel, C.; Haarlammert, N.; Schreiber, T.; Eberhardt, R.; Tünnermann, A.


Optical Society of America -OSA-, Washington/D.C.:
Advanced Solid State Lasers 2015 : Berlin, Germany, October 4-9, 2015
Washington, DC: OSA, 2015
ISBN: 978-1-943580-02-6
Paper ATh2A.23
Conference "Advanced Solid State Lasers" (ASSL) <2015, Berlin>
Fraunhofer IOF ()

In this contribution we demonstrate an approach to determine the longitudinal resolved thermal load in the core of an ytterbium-doped amplifier-fiber. The temperature distribution was measured by an OFDR in a single-mode amplifier in operation.