Stimulated-Brillouin-scattering-suppressed high-power single-frequency polarization-maintaining Raman fiber amplifier with longitudinally varied strain for laser guide star

被引：74

作者：

Zhang, Lei ^{[1
,2
,3
]}

Hu, Jinmeng ^{[1
,2
,3
]}

Wang, Jianhua ^{[1
,2
]}

Feng, Yan ^{[1
,2
]}

机构：

[1] Chinese Acad Sci, Shanghai Key Lab Solid State Laser & Applicat, Shanghai 201800, Peoples R China

[2] Chinese Acad Sci, Shanghai Inst Opt & Fine Mech, Shanghai 201800, Peoples R China

[3] Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China

来源：

OPTICS LETTERS | 2012年 / 37卷 / 22期

关键词：

589; NM;

D O I：

10.1364/OL.37.004796

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

An up to 44 W, 1 MHz linewidth, 1178 nm CW laser is obtained by Raman amplification of a distributed feedback diode laser in a variably strained polarization-maintaining fiber with a record-high optical efficiency of 52%, pumped by a linearly polarized 1120 nm fiber laser. A polarization extinction ratio of 30 dB is achieved due to the all-polarization-maintaining configuration and the polarization dependence of Raman gain. The strain distribution is designed according to the signal power evolution along the fiber. A 20 times reduction in the effective stimulated Brillouin scattering coefficient is achieved. A 24.3 W 589 nm laser is generated by an external resonant doubling cavity with an optical efficiency of 68.5%. The laser is locked to 589.1591 nm for a laser guide star. (C) 2012 Optical Society of America

引用

页码：4796 / 4798

页数：3

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