High-power linearly-polarized single-frequency thulium-doped fiber master-oscillator power-amplifier

被引：41

作者：

Pearson, L. ^{[1
]}

Kim, J. W. ^{[1
]}

Zhang, Z. ^{[1
]}

Ibsen, M. ^{[1
]}

Sahu, J. K. ^{[1
]}

Clarkson, W. A. ^{[1
]}

机构：

[1] Univ Southampton, Optoelect Res Ctr, Southampton SO17 1BJ, Hants, England

来源：

OPTICS EXPRESS | 2010年 / 18卷 / 02期

基金：

英国工程与自然科学研究理事会;

关键词：

2; MU-M; LASERS; TM; NM;

D O I：

10.1364/OE.18.001607

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We report a high power narrow-linewidth source at similar to 2 mu m based on a Tm-doped fiber distributed-feedback master-oscillator and three Tm fiber amplifier stages. The master-oscillator and first two amplifier stages were in-band pumped by Er, Yb fiber lasers operating at 1565 nm, and the final stage amplifier was cladding-pumped at 795 nm by two spatially-combined diode-stacks. The MOPA yielded 100 W of single frequency output at 1943 nm with a beam propagation factor (M-2) of 1.25 and with a polarization extinction ratio of >94%. The output power was limited by thermally-induced damage in the final amplifier stage. The prospects for further power scaling are considered. (C) 2010 Optical Society of America

引用

页码：1607 / 1612

页数：6

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