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华中科技大学 武汉光电国家研究中心, 湖北 武汉 430074
[ "赵新月(1998-),女,湖北枣阳人,硕士研究生,2020于湖南科技大学获得学士学位,主要从事少模掺铒放大光纤的研究。 E-mail: zxy_27@hust.edu.cn" ]
[ "李进延(1972-),男,青海西宁人,博士,教授,2001年于中国科学院上海光学精密机械研究所获得博士学位,主要从事掺稀土光纤、光子晶体光纤等特种光纤、光纤激光器和光纤传感等领域的研究。 E-mail: ljy@hust.edu.cn" ]
纸质出版日期:2022-12-05,
收稿日期:2022-06-23,
修回日期:2022-07-09,
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赵新月,邱强,褚应波等.少模掺铒光纤及其放大器研究进展[J].发光学报,2022,43(12):1915-1927.
ZHAO Xin-yue,QIU Qiang,CHU Ying-bo,et al.Research Progress on Few-mode Erbium-doped Fiber and Its Corresponding Amplifier[J].Chinese Journal of Luminescence,2022,43(12):1915-1927.
赵新月,邱强,褚应波等.少模掺铒光纤及其放大器研究进展[J].发光学报,2022,43(12):1915-1927. DOI: 10.37188/CJL.20220246.
ZHAO Xin-yue,QIU Qiang,CHU Ying-bo,et al.Research Progress on Few-mode Erbium-doped Fiber and Its Corresponding Amplifier[J].Chinese Journal of Luminescence,2022,43(12):1915-1927. DOI: 10.37188/CJL.20220246.
基于少模和多芯光纤的空分复用技术被认为是未来大幅提高单根光纤数据传输容量最重要的技术之一。采用少模光纤的空分复用技术要实现长距离传输,少模掺铒光纤放大器(Few⁃mode erbium⁃doped fiber amplifier,FM⁃EDFA)是补偿光纤传输损耗的关键器件,而少模掺铒光纤决定了FM⁃EDFA的性能。相对于单模掺铒光纤而言,少模掺铒光纤除了有增益、带宽、噪声等基本指标之外,还有一个独特的指标——差分模态增益。高差分模态增益会导致系统中断概率的提升,因此在少模掺铒光纤放大器中最小化差分模态增益以保持信号质量至关重要。本文系统阐述了差分模态增益的产生机理及改善策略,总结了少模掺铒光纤的不同设计,对比了采用不同设计及基于不同泵浦方式的少模掺铒放大光纤的性能特点,并对少模掺铒光纤的放大性能研究做出了展望。
Space division multiplexing technology based on few-mode fiber(FMF) and multi-core fiber is considered to be one of the most important technologies to greatly improve the data transmission capacity of a single fiber in the future. If we want to employ FMF in space division multiplexing to realize a long-haul transmission system, few-mode erbium-doped fiber amplifiers(FM-EDFAs) will be a key block to compensate for the fiber transmission loss while its performance is determined by few-mode erbium-doped fiber(FM-EDF). In addition to fundamental indexes like gain, bandwidth and noise figure, few-mode erbium-doped fiber has a unique index—differential modal gain(DMG) compared with the single-mode erbium-doped fiber. Minimizing DMG to maintain signal quality is critical in FM-EDFAs as the high differential modal gain can improve the potential for system outage. In this paper, the generation mechanism and improvement strategies of differential modal gain are systematically described, the different designs of FM-EDF are summarized, the performance characteristics of FM-EDF based on different pumping methods and different designs are compared, and the research on the performance of FM-EDF is prospected.
少模掺铒光纤少模掺铒光纤放大器增益差分模态增益包层泵浦纤芯泵浦
few-mode erbium-doped fiberfew-mode erbium-doped fiber amplifiergaindifferential modal gaincladding-pumpedcore-pumped
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