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Dynamics and origin of mode instabilities in high power fiber laser amplifiers

: Otto, Hans-Jürgen; Jauregui, Cesar; Eidam, Tino; Stutzki, Fabian; Jansen, Florian; Limpert, Jens; Tünnermann, Andreas

Fulltext ()

OSA technical digest. Online resource (2012), CF2N.7
Conference on Lasers and Electro-Optics (CLEO) <2012, San Jose/Calif.>
Conference Paper, Electronic Publication
Fraunhofer IOF ()

The temporal behavior of mode instabilities is investigated. These results support the thermal origin of this effect, and, in particular, the creation of a thermally-induced long period grating by the beating of two transversal modes.