Preparation of the large-mode-area ytterbium-doped microstructure fibre and laser performance

被引：0

作者：

Zhou, Dechun ^{[1
]}

Bai, Xuemei ^{[1
]}

Zhou, Hang ^{[2
]}

机构：

[1] School of Materials Science and Engineering, Changchun University of Science and Technology, Changchun,Jilin,130022, China

[2] School of Electric Power, South China University of Technology, Guangzhou,Guangdong,510640, China

来源：

Zhongguo Jiguang/Chinese Journal of Lasers | 2014年 / 41卷 / 12期

关键词：

Fibers; -; Pumping; (laser); Ytterbium; Microstructure; Waveguides;

D O I：

10.3788/CJL201441.1205006

中图分类号：

学科分类号：

摘要：

The waveguide structure of the large-mode microstructure fiber is designed in view of the efficient coupling and laser output quality during the practical application of the high-power fiber laser. It employs the bundle drawing technology to prepare the ytterbium-doped microstructure fibre with the core diameter of 41 μm, inner-cladding numerical aperture of 0.62, core numerical aperture of 0.05 and effective mode area of 530 μm2. The output power of the single-mode laser is 19.1 W, the slope efficiency is 55.2% and the beam quality factor of M2 is less than 1.01, on the condition that the pump power is 35.0 W. ©, 2014, Science Press. All right reserved.

引用