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

被引：5

作者：

Jauregui, Cesar ^{[1
]}

Stihler, Christoph ^{[1
]}

Tunnermann, Andreas ^{[1
,2
,3
]}

Limpert, Jens ^{[1
,2
,3
]}

机构：

[1] Friedrich Schiller Univ Jena, Inst Appl Phys, Abbe Ctr Photon, Albert Einstein Str 15, D-07745 Jena, Germany

[2] Helmholtz Inst Jena, Frobelstieg 3, D-07743 Jena, Germany

[3] Fraunhofer Inst Appl Opt & Precis Engn, Albert Einstein Str 7, D-07745 Jena, Germany

来源：

FIBER LASERS XV: TECHNOLOGY AND SYSTEMS | 2018年 / 10512卷

基金：

欧洲研究理事会;

关键词：

Transverse mode instabilities; high-power fiber lasers; thermal effects; phase-shift;

D O I：

10.1117/12.2290021

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

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.

引用

页数：6

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