光纤型少模掺铒光纤放大器的差模增益可调性研究  

Adjustability of Differential Mode Gain for All-Fiber Few-Mode ErbiumDoped Fiber Amplifiers

作　　者：江歆睿 武保剑[1] 许焰 文峰[1] 邱昆[1] Jiang Xinrui;Wu Baojian;Xu Yan;Wen Feng;Qiu Kun(Key Laboratory of Optical Fiber Sensing and Communications,Ministry of Education,University of Electronic Science and Technology of China,Chengdu 611731,Sichuan,China)

机构地区：[1]电子科技大学光纤传感与通信教育部重点实验室,四川成都611731

出　　处：《光学学报》2022年第15期25-30,共6页Acta Optica Sinica

基　　金：国家自然科学基金(62171078);国家重点研发计划(2018YFB1801003)。

摘　　要：利用少模掺铒光纤放大器(FM-EDFA)的差模增益可调性,可实现模式增益均衡、补偿链路模式相关损耗,能够大大提高模分复用系统的组网灵活性。制作少模隔离器和波分复用器一体化光纤器件(FM-IWDM),并将其用于构建全光纤型FM-EDFA。采用中心波长为1480 nm的泵浦光源开展同向和双向泵浦光放大实验,保持泵浦总功率为200 mW,通过调节泵浦功率比例,分别获得2.6 dB和4.8 dB的最大可调差模增益。The adjustability of differential mode gain for few-mode erbium-doped fiber amplifiers(FM-EDFAs)can be used for mode gain equalization and compensation for link mode-dependent loss,which can significantly improve the networking flexibility of mode division multiplexing systems.A few-mode optical fiber device integrating the isolator and the wavelength division multiplexer(FM-IWDM)is produced to build all-fiber FM-EDFAs.Two optical amplifying experiments using the codirectional and bidirectional pumps with a center wavelength of 1480 nm are carried out,and the maximum adjustable differential mode gain of 2.6 dB and 4.8 dB can be achieved by adjusting the pump power ratio under the pump total power of 200 mW.

关 键 词：光通信 模分复用 掺铒光纤放大器 差模增益 

分 类 号：O436[机械工程—光学工程]