Local-cooled watt-level Nd-doped phosphate single-mode fiber laser

被引：6

作者：

Zhang, G. ^{[1
,2
]}

Yu, C. L. ^{[1
]}

Wang, M. ^{[1
]}

Zhou, Q. L. ^{[1
]}

Qiu, J. R. ^{[3
]}

Hu, L. L. ^{[1
]}

Chen, D. P. ^{[1
]}

机构：

[1] Chinese Acad Sci, Key Lab Mat Sci & Technol High Power Lasers, Shanghai Inst Opt & Fine Mech, Shanghai 201800, Peoples R China

[2] Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China

[3] S China Univ Technol, Inst Opt Commun Mat, Guangzhou 510641, Guangdong, Peoples R China

来源：

LASER PHYSICS | 2012年 / 22卷 / 07期

关键词：

MU-M; COMPACT; OUTPUT; POWER;

D O I：

10.1134/S1054660X12070201

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Efficient and stable continuous-wave (CW) laser operation at 1053 nm in a Nd-doped phosphate single-mode fiber (Nd:PSMF) has been demonstrated experimentally. The fiber laser consisted of a 21 cm Nd:PSMF placed in a F-P cavity formed by high reflector butt-coupled to coupling end of the fiber and Fresnel reflection of the other end facet. An output power of 1.42 W and a slope efficiency of 34.1% (18.4%) with respect to absorbed pump power (incident pump power) were obtained with 808 nm diode pumping. An increment as much as 9.7 and 15.0% in slope efficiency of the input coupling efficiency and the output power, respectively, were obtained by using a local-cooling design provided by watered sealing the coupling point. The repeatable results indicate that the design, featuring fluid sealing the coupling point of the fiber laser, which was capable of offering an effective alleviation of thermal effects and an elevation of the quality of the laser cavity, could be expected to be a convenient and effective scheme to improve the performance characteristics of the non-silica fiber lasers and the high power fiber lasers, generally in free-space coupling configuration.

引用

页码：1235 / 1239

页数：5

共 15 条

[1] Reversible photo-darkening and resonant photobleaching of Ytterbium-doped silica fiber at in-core 977-nm and 543-nm irradiation [J].