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10 February 2011 Robust single-mode ytterbium-doped large pitch fiber emitting 294 W
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Abstract
Ytterbium-doped Large Pitch Fibers with very large mode areas are investigated in a high power fiber amplifier configuration. An average output power of 294 W is demonstrated, while maintaining robust single-mode operation with a mode field diameter of 62 μm. Compared to previous active large mode area designs the threshold of mode instabilities is increased by a factor of about 3.
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Florian Jansen, Fabian Stutzki, Tino Eidam, Alexander Steinmetz, Cesar Jauregui, Jens Limpert, and Andreas Tünnermann "Robust single-mode ytterbium-doped large pitch fiber emitting 294 W", Proc. SPIE 7914, Fiber Lasers VIII: Technology, Systems, and Applications, 791417 (10 February 2011); https://doi.org/10.1117/12.874756
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