Demonstration of an all-fiber cladding-pumped FM-EDFA with low differential modal gain

被引：21

作者：

Chang, Yanbiao ^{[1
]}

Pei, Li ^{[1
]}

Zheng, Jingjing ^{[1
]}

Wang, Jianshuai ^{[1
]}

He, Qian ^{[1
]}

Li, Jing ^{[1
]}

Ning, Tigang ^{[1
]}

Zhong, Li ^{[2
]}

机构：

[1] Beijing Jiaotong Univ, Inst Lightwave Technol, Key Lab All Opt Network & Adv Telecommun Network, Minist Educ, Beijing 100044, Peoples R China

[2] Yangtze Opt Fibre & Cable Joint Stock Ltd Co, State Key Lab Opt Fiber & Cable Manufacture Techn, Wuhan 430073, Peoples R China

来源：

OPTICS AND LASER TECHNOLOGY | 2022年 / 155卷

基金：

国家重点研发计划;

关键词：

Few mode fiber amplifier; Modal gain equalization; Erbium-dopant; Spatial division multiplexing; ERBIUM-DOPED FIBER; AMPLIFIER;

D O I：

10.1016/j.optlastec.2022.108446

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

An all-fiber few mode erbium doped fiber amplifier (FM-EDFA) with low differential modal gain (DMG) is theoretically and experimentally demonstrated. Firstly, a double-cladding six-mode EDF (6M-EDF) with triple-layer erbium ion doping is designed and fabricated. Then, based on the homemade 6M-EDF, an all-fiber cladding-pumped FM-EDFA is implemented with high modal fidelity. Our experimental results show that the DMG is less than 2.65 dB in the wavelength range of 1535-1570 nm, the modal gains for the 6 modes are higher than 19 dB, and the noise figures are about 4.61-7.66 dB. The all-fiber FM-EDFA with low DMG offers a cost-effective and stable alternative for high-integrated all-fiber long-haul spatial division multiplexing applications.

引用

页数：7

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