1137 nm长波掺镱光纤激光器的出光实验

张汉伟; 周朴; 王小林; 肖虎; 许晓军

doi:doi:10.3788/hplpb20132511.2785

强激光与粒子束, 2013, 25 (11): 2785, 网络出版: 2013-11-14

1137 nm长波掺镱光纤激光器的出光实验

Experimental study on 1137 nm long wavelength Yb-doped fiber lasers

论文大纲

张汉伟 ^*周朴王小林肖虎许晓军

作者单位

国防科学技术大学光电科学与工程学院, 长沙 410073

掺镱光纤长波激光放大自发辐射 Yb-doped fiber long wavelength amplified spontaneous emission

摘要

分别使用976 nm半导体激光器和1040 nm光纤激光器作为泵浦源，实现了1137 nm长波光纤激光器的出光，输出功率均超过百mW。激光器采用相同的线性腔结构，高反光栅和低反光栅的反射率分别为99.6%和39.7%，增益介质是一段8 m长的掺镱光纤，纤芯直径5 μm。当976 nm半导体泵浦功率为912 mW时，1137 nm激光输出功率为182 mW，对应的斜率效率为28.5%；当1040 nm激光功率为1.59 W时，输出的1137 nm激光功率为278 mW，斜率效率约为25%。在此基础上对两种泵浦方式进行了对比分析。

Abstract

We reported the experiments of 1137 nm Yb-doped fiber laser, which was pumped by 976 nm laser diode and 1040 nm fiber laser respectively. Both of the output powers of the experiments were over hundred-milliwatt. The laser was a linear cavity. The reflectivities of the high reflectivity fiber Bragg grating and low reflectivity output coupler were 99.6% and 39.7% respectively. The gain media was an 8-meters-long Yb-doped fiber with a core diameter of 5 μm. When the power of the 976 nm laser diode was 912 mW, the output power of 1137 nm laser reached to 182 mW corresponding to the slope efficiency of 28.5%. When pumped by 1.59 W 1040 nm fiber laser, a 278 mW 1137 nm laser power was obtained with a slope efficiency of 25%. We also compared the differences of these two pumping methods.

参考文献

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张汉伟, 周朴, 王小林, 肖虎, 许晓军. 1137 nm长波掺镱光纤激光器的出光实验[J]. 强激光与粒子束, 2013, 25(11): 2785. Zhang Hanwei, Zhou Pu, Wang Xiaolin, Xiao Hu, Xu Xiaojun. Experimental study on 1137 nm long wavelength Yb-doped fiber lasers[J]. High Power Laser and Particle Beams, 2013, 25(11): 2785.

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