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250 W single-crystal fiber Yb:YAG laser |
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| Authors: | Xavier Délen Stefan Piehler Julien Didierjean Nicolas Aubry Andreas Voss Marwan Abdou Ahmed Thomas Graf Francois Balembois Patrick Georges |
| Institution: | Laboratoire Charles Fabry, Institut d’Optique, CNRS, Univ Paris-Sud, 2 Av A. Fresnel, Palaiseau, France. xavier.delen@institutoptique.fr |
| Abstract: | We demonstrate an Yb:YAG single-crystal fiber laser with 251 W output power in continuous-wave and an optical efficiency of 44%. This performance can be explained by the high overlap between pump and signal beams brought by the pump guiding and by the good thermal management provided by the single-crystal fiber geometry. The oscillator performance with a reflectivity of the output coupler as low as 20% also shows high potential for power amplification. |
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