High average power large-pitch fiber amplifier with robust single-mode operation

被引：157

作者：

Stutzki, Fabian ^{[1
]}

Jansen, Florian ^{[1
]}

Eidam, Tino ^{[1
,2
]}

Steinmetz, Alexander ^{[1
]}

Jauregui, Cesar ^{[1
]}

Limpert, Jens ^{[1
,2
]}

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

机构：

[1] Univ Jena, Inst Appl Phys, D-07745 Jena, Germany

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

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

来源：

OPTICS LETTERS | 2011年 / 36卷 / 05期

基金：

欧洲研究理事会;

关键词：

BEAM QUALITY; AREA;

D O I：

10.1364/OL.36.000689

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Ytterbium-doped large-pitch fibers with very large mode areas are investigated in a high-power fiber amplifier configuration. An average output power of 294W is demonstrated, while maintaining robust single-mode operation with a mode field diameter of 62 mu m. Compared to previous active large-mode area designs, the threshold of mode instabilities is increased by a factor of about 3. (C) 2011 Optical Society of America

引用

收藏

页码：689 / 691

页数：3

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