通过在弱合的FMF中通过intramodal分散进行合式XPM减小的实验研究
Optics letters
|August 29, 2024
概括
在少数模式纤维中的内部分散显著减少了非线性交叉通道,增强了模式划分多重复合系统. 这项研究实验验证了分散的实验.
科学领域:
- 光学通信是指光学通信的应用.
- 光子学是指光子学的使用方法.
- 光纤光学是指光纤的使用.
背景情况:
- 非线性传播效应在低交叉声率的少数模式光纤 (FMF) 中对于模式分割复杂化 (MDM) 具有关键作用.
- 对于高性能FMF传输来说,了解和减轻模式内跨相调制 (XPM) 是必不可少的.
研究的目的:
- 通过实验验证内分散在缓解内XPM方面的好处.
- 评估内部XPM对FMF不同模式的传输性能的影响.
主要方法:
- 建立了一个70公里长的传输系统,使用多环核心少数模式光纤.
- 在FMF中容纳了6种线性偏振 (LP) 模式.
- 对每个LP模式的传输性能进行了评估,对每个LP模式的传输性能进行了评估.
主要成果:
- 已经证明,对于具有较高内分散度的退化LP模式,内XPM显著较弱.
- 实现了最大限度的XPM内部噪声抑制,高达9.7dB.
- 观察到一种明显的相关性,介于内分散和XPM缓解.
结论:
- 在弱合的FMF中,内分散有利地减轻了内XPM.
- 这一发现对于优化模式划分多重复合系统的性能至关重要.
- 结果支持弱合MDM技术的实际应用.
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