Study on high-power narrow-bandwidth 1 915 nm thulium-doped fiber laser

被引：0

作者：

Zhang W. ^{[1
,2
]}

Wu W. ^{[1
]}

Yu T. ^{[1
]}

Meng J. ^{[3
]}

Yang Z. ^{[1
]}

Chen X. ^{[1
]}

Liu C. ^{[4
]}

Ye X. ^{[1
]}

机构：

[1] Research Center of Space Laser Information Technology, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai

[2] University of Chinese Academy of Sciences, Beijing

[3] College of Science, Shanghai University, Shanghai

[4] National Key Laboratory of Materials Behavior and Evaluation Technology in Space Environment, Harbin Institute of Technology, Harbin

来源：

| 2018年 / Chinese Society of Astronautics卷 / 47期

关键词：

1; 915; nm; High efficiency; MOPA; Narrow bandwidth; Thulium-doped fiber laser;

D O I：

10.3788/IRLA201847.0505001

中图分类号：

学科分类号：

摘要：

A high-power high-efficiency narrow-bandwidth thulium-doped fiber laser (TDFL) with output wavelength 1 915 nm was studied in this work. The thulium -doped fiber laser was based on system of master oscillator power amplifier (MOPA). The laser diode with about 40 W output power and 793 nm wavelength was used to pump double cladding large-mode-area (LMA) thulium-doped fiber with 25 µm core diameter, the narrow-bandwidth continuous wave (CW) seed laser with wavelength 1 915 nm and maximum power 12.1 W was obtained. When the 793 nm pump power was 142.9 W, after the 8 W seed laser going through the thulium-doped fiber amplifier, the output laser had average power of 90 W, central wavelength of 1 915. 051 nm, and the 3 dB spectrum bandwidth was 94 pm, with slope efficiency of 60%, and optical-to-optical conversion efficiency of 63%. The stability of output laser of this system behaves well in the 40 min operation checking time. © 2018, Editorial Board of Journal of Infrared and Laser Engineering. All right reserved.

引用

共 22 条

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