Optimized Backward Pumping Design for a 6-Mode Distributed Raman Amplifier for SDM Systems

IF 4.4 3区计算机科学 Q2 TELECOMMUNICATIONS

IEEE Communications Letters Pub Date : 2025-07-11 DOI:10.1109/LCOMM.2025.3588148

Astrid Lozada;Ricardo Olivares;Bárbara Dumas Feris;Ariel Leiva;Gabriel Saavedra;Nicolás Jara;Patricia Morales;Danilo Bórquez-Paredes

引用次数: 0

Abstract

We present the first optimized design and characterization of a six-mode distributed Raman amplifier (6M-DRA) for next-generation optical communication systems using space-division multiplexing (SDM) based on few-mode fibers (FMF). A genetic algorithm optimizes the pumping profile to minimize gain ripple and differential modal gain (DMG). Numerical results show an average on-off gain of 9.5 dB over 70 km, gain ripple below 1 dB, DMG under 2.10 dB, effective noise figure under 1.42 dB, optical signal-to-noise ratio larger than 29.5 dB, and pump efficiency of 9.30 dB/W, demonstrating its potential as an effective amplification solution for future SDM-FMF optical networks.

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SDM系统中6模分布式拉曼放大器的优化后向抽运设计

我们首次提出了一种六模分布式拉曼放大器（6M-DRA）的优化设计和特性，该放大器用于基于少模光纤（FMF）的空分复用（SDM）下一代光通信系统。遗传算法优化泵浦轮廓，以最小化增益纹波和差分模态增益（DMG）。数值结果表明，在70 km范围内的平均开关增益为9.5 dB，增益纹波小于1 dB， DMG小于2.10 dB，有效噪声系数小于1.42 dB，光信噪比大于29.5 dB，泵浦效率为9.30 dB/W，显示了其作为未来SDM-FMF光网络的有效放大解决方案的潜力。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

IEEE Communications Letters 工程技术-电信学

CiteScore

8.10

自引率

7.30%

发文量

590

审稿时长

2.8 months

期刊介绍： The IEEE Communications Letters publishes short papers in a rapid publication cycle on advances in the state-of-the-art of communication over different media and channels including wire, underground, waveguide, optical fiber, and storage channels. Both theoretical contributions (including new techniques, concepts, and analyses) and practical contributions (including system experiments and prototypes, and new applications) are encouraged. This journal focuses on the physical layer and the link layer of communication systems.