219.6 W large-mode-area Er:Yb codoped fiber amplifier operating at 1600 nm pumped by 1018 nm fiber lasers

被引：29
作者：
Yu, Weilong [1 ,2 ]
Xiao, Qirong [1 ,2 ]
Wang, Lele [1 ,2 ]
Zhao, Ying [1 ,2 ]
Qi, Tiancheng [1 ,2 ]
Yan, Ping [1 ,2 ]
Gong, Mali [1 ,2 ]
机构：
[1] Tsinghua Univ, Key Lab Photon Measurement & Control Technol, Minist Educ, Beijing 100084, Peoples R China
[2] Tsinghua Univ, State Key Lab Precis Measurement & Instruments, Beijing 100084, Peoples R China
来源：
OPTICS LETTERS | 2021年 / 46卷 / 09期
基金：
中国国家自然科学基金;
关键词：
MU-M; POWER; EFFICIENCY; SIGNAL;
D O I：
10.1364/OL.424368
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
We demonstrate, to the best of our knowledge, the first high-power large-mode-area Er:Yb codoped fiber amplifier pumped by 1018 nm fiber lasers. The output power reaches 219.6 W, which is the highest power operating at 1600 nm with near-diffraction-limitation beam quality. The 1018 nm pumping scheme contributes to the mitigation of Er,Yb fiber bottlenecking, improvement in signal gain, and reduction of heat generation. Also, we inject co-propagating C-band amplified spontaneous emission (ASE) into the master amplifier to avoid unwanted backward-propagating ASE. (C) 2021 Optical Society of America
引用
收藏
页码：2192 / 2195
页数：4
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