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

被引：31

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

页码：2192 / 2195

页数：4

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