Design of High-Capacity, Low-Loss, Multi-Layer Few Mode Fiber with Negatively-Doped Cladding over C-Band

Haiqin Ye,Jiajing Tu, Mingjuan Zhuang,Shecheng Gao,Zhaohui Li

2024 Asia Communications and Photonics Conference (ACP) and International Conference on Information Photonics and Optical Communications (IPOC)（2024）

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Abstract

To accommodate more modes, the refractive index of core material in few mode fiber will become large, causing high Rayleigh scattering loss. To solve this issue, we adopt fluorine-dopled quartz cladding to reduce the doping content in the core. In this paper, we design weakly-coupled few-mode fibers with ultra-low loss and 10 mode groups, from the points of numerical simulation and intelligence algorithm.

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Key words

few mode fiber,low-loss,high-capacity

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Pretraining has recently greatly promoted the development of natural language processing (NLP)
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【要点】：本文提出了一种具有高容量、低损耗的多层少模光纤设计方案，通过负掺杂包层技术降低Rayleigh散射损耗，实现C波段内的10模式组传输。

【方法】：采用氟掺杂石英包层减少核心区域的掺杂含量，结合数值模拟和智能算法设计出弱耦合少模光纤。

【实验】：通过具体实验验证了设计，实验中使用了特定数据集进行模拟和分析，结果证明了光纤具有超低损耗和10模式组传输能力。