Numerical modeling and optimization of hundred-watt-level 2.8 μm and 1.6 μm cascaded heavily-erbium-doped fluoride fiber amplifiers

被引：6

作者：

Xiao, Yang ^{[1
]}

Xiao, Xusheng ^{[1
]}

Xu, Yantao ^{[1
]}

She, Shengfei ^{[1
]}

Liu, Chengzhen ^{[1
]}

Guo, Haitao ^{[1
]}

机构：

[1] Chinese Acad Sci, Xian Inst Optic & Precis Mech, AThe State Key Lab Transient Optic & Photon, Xian 710119, Shaanxi, Peoples R China

来源：

OPTICS AND LASER TECHNOLOGY | 2022年 / 155卷

基金：

中国国家自然科学基金;

关键词：

Cascade amplification; Heavily erbium doped; Fluoride fiber; Fiber amplifiers; Numerical modeling; BRAGG GRATINGS; GLASS-FIBER; HIGH-POWER; LASER; PULSES; GENERATION; MOPA;

D O I：

10.1016/j.optlastec.2022.108418

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We propose a continuous-wave dual-seed cascaded heavily erbium-doped fluoride fiber amplifier scheme with a 981 nm bi-directional pump configuration for hundred-watt-level power scaling for the first time. When the powers of the 2.8 mu m and 1.6 mu m seed lasers and the total pump light are 5 W, 20 W, and 300 W, respectively, the 2.8 mu m laser theoretically achieves an output power of similar to 100 W. The amplifier scheme can also reduce the fiber temperature. Additionally, the results show that there is no excited state absorption at similar to 1.675 mu m, and thus injecting a 1.675 mu m laser to the amplifier is not conducive to the power scaling.

引用

页数：9

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