Transverse mode instabilities in burst operation of high-power fiber laser systems

Cesar Jauregui; Christoph Stihler; Andreas Tünnermann; Jens Limpert

doi:10.1117/12.2290021

26 February 2018 Transverse mode instabilities in burst operation of high-power fiber laser systems

Cesar Jauregui, Christoph Stihler, Andreas Tünnermann, Jens Limpert

Proceedings Volume 10512, Fiber Lasers XV: Technology and Systems; 1051207 (2018) https://doi.org/10.1117/12.2290021
Event: SPIE LASE, 2018, San Francisco, California, United States

Abstract

We propose, to the best of our knowledge, the first mitigation strategy for TMI based on controlling the phase shift between the thermally-induced index grating and the modal intensity pattern. In particular, in this work we present a study of transverse mode instabilities in burst operation in a high-power fiber laser system. It is shown that, with a careful choice of the parameters, this operation regime can potentially lead to the mitigation of TMI by forcing an energy transfer from the higher-order-modes into the fundamental mode during the burst.

Citation Download Citation

Cesar Jauregui, Christoph Stihler, Andreas Tünnermann, and Jens Limpert "Transverse mode instabilities in burst operation of high-power fiber laser systems", Proc. SPIE 10512, Fiber Lasers XV: Technology and Systems, 1051207 (26 February 2018); https://doi.org/10.1117/12.2290021

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