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4-fold increase of the mode-instability threshold in an Yb-doped multi-core fiber amplifier emitting 536 W

 
: Otto, Hans-Jürgen; Klenke, Arno; Jauregui, Cesar; Stutzki, Fabian; Limpert, Jens; Tünnermann, Andreas

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Optical Society of America -OSA-, Washington/D.C.:
CLEO: Science and Innovations 2014. Proceedings : 8.-13.6.2014, San Jose, Ca, United States
Washington, DC: OSA, 2014
ISBN: 978-1-55752-999-2
Paper STh4N
Conference "CLEO - Science and Innovations" <2014, San Jose/Calif.>
English
Conference Paper
Fraunhofer IOF ()

Abstract
A compact, pulsed MOPA fiber-laser system employing a 4 core photonic-crystal fiber is presented that exhibits a 4 times increased mode-instability threshold. An average power of 536W with nearly diffraction limited beam quality was achieved.

: http://publica.fraunhofer.de/documents/N-294230.html