Diode-pumped narrow linewidth multi-kilowatt metalized Yb fiber amplifier

被引：122

作者：

Yu, Charles X. ^{[1
]}

Shatrovoy, Oleg ^{[1
]}

Fan, T. Y. ^{[1
]}

Taunay, Thierry F. ^{[2
,3
]}

机构：

[1] MIT Lincoln Lab, 244 Wood St, Lexington, MA 02421 USA

[2] OFS Labs, 19 Schoolhouse Rd, Somerset, NJ 08873 USA

[3] Photon Bretagne, 4 Rue Broglie, F-22300 Lannion, France

来源：

OPTICS LETTERS | 2016年 / 41卷 / 22期

关键词：

MODE-INSTABILITY; KW;

D O I：

10.1364/OL.41.005202

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We investigate high brightness pumping of a multi-kilowatt Yb fiber amplifier in a bi-directional pumping configuration. Each pump outputs 2 kW in a 200 mu m, 0.2 NA multi-mode fiber. Gold-coated specialty gain fibers, with a 17 mu m mode field diameter and a 5 dB/m pump absorption, have been developed. The maximum fiber amplifier output power is 3.1 kW, limited by multimode instability, with 90% O-O efficiency and M-2 < 1.15. The fiber amplifier linewidth is 12 GHz. (C) 2016 Optical Society of America

引用

页码：5202 / 5205

页数：4

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