Fiber-Longitudinal Anomaly Position Identification Over Multi-Span Transmission Link Out of Receiver-end Signals
Fiber-Longitudinal Anomaly Position Identification Over Multi-Span Transmission Link Out of Receiver-end Signals
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DOI：
10.1109/jlt.2020.2984270
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发表时间：
2020-05
影响因子：
4.7
通讯作者：
T. Tanimura;S. Yoshida;K. Tajima;S. Oda;T. Hoshida
中科院分区：
文献类型：
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作者：
T. Tanimura;S. Yoshida;K. Tajima;S. Oda;T. Hoshida
我们已经开发了一种光纤纵向监测器，它通过使用放置在接收器端的相干接收器获得的信号波形来可视化整个多跨链路的距离方向的光功率。这是一个现场监测器，通过使用相干接收器数据的数字后处理，从其输入信号估计沿链路纵轴的功率分布。通过实验证明，我们的方法可以同时可视化和定位光纤传输链路上的多个功率衰减异常。这种基于数据处理的数字相干接收机监测将是未来以丰富的物理层信息为驱动的自主光网络的关键。
We have developed a fiber-longitudinal monitor that visualizes distance-wise optical power throughout the entire multi-span link by using the signal waveform obtained by a coherent receiver placed at the receiver-end. This is an in-situ monitor that estimates power profile along the link-longitudinal axis from its incoming signal by employing digital post-processing of coherent receiver data. We demonstrate through experiments that our method can simultaneously visualize and localize multiple power attenuation anomalies over fiber transmission links. This data processing-based monitoring by digital coherent receiver will be a key element in future autonomous optical networks driven by rich information on physical-layer.