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Conferences > ASSP > 2012 > AT4A > AT4A.10

Thermally induced index gratings in few-mode high-power fiber laser systems

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

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Abstract

Mode-interference in few-mode fiber laser systems induces an oscillating temperature profile which gives rise to an index grating via the thermo-optic effect. Such gratings are most likely at the root of the experimentally observed mode instabilities.

© 2012 Optical Society of America

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