Experimental Demonstration of Longitudinal Power Monitoring Over a Mixed Fiber Link

IF 2.5 3区工程技术 Q2 ENGINEERING, ELECTRICAL & ELECTRONIC

IEEE Photonics Technology Letters Pub Date : 2025-07-17 DOI:10.1109/LPT.2025.3590274

Dario Pilori;Stefano Straullu;Antonino Nespola;Lorenzo Andrenacci;Stefano Piciaccia;Gabriella Bosco

引用次数: 0

Abstract

This letter presents an experimental demonstration of the Linear-Least Squares Longitudinal Power Monitoring (LLS-LPM) technique over a mixed fiber link. The link is made by five spans, including four spans of G.652 Single-Mode Fiber (SMF) and one span of G.655 Non-Zero Dispersion-Shifted Fiber (NZDSF) with negative dispersion in the C-band. The study highlights the challenges posed by the negative dispersion of G.655 fiber and its impact on the convergence of the LLS-LPM algorithm. The experimental results demonstrate that the LLS-LPM algorithm can accurately estimate the power profile, only in the link portion where there is a one-to-one relation between the cumulated chromatic dispersion and the distance. This work provides valuable insights into the application of LLS-LPM in real-world fiber networks with mixed fiber types.

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混合光纤链路纵向功率监测的实验验证

本文介绍了在混合光纤链路上线性最小二乘纵向功率监测（LLS-LPM）技术的实验演示。该链路由5个跨度组成，包括4个跨度的G.652单模光纤（SMF）和1个跨度的G.655非零色散位移光纤（NZDSF），在c波段具有负色散。本研究强调了G.655光纤负色散带来的挑战及其对LLS-LPM算法收敛性的影响。实验结果表明，LLS-LPM算法可以准确地估计功率分布，但仅在累积色散与距离成一对一关系的链路部分。这项工作为LLS-LPM在混合光纤类型的实际光纤网络中的应用提供了有价值的见解。

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 Photonics Technology Letters 工程技术-工程：电子与电气

CiteScore

5.00

自引率

3.80%

发文量

404

审稿时长

2.0 months

期刊介绍： IEEE Photonics Technology Letters addresses all aspects of the IEEE Photonics Society Constitutional Field of Interest with emphasis on photonic/lightwave components and applications, laser physics and systems and laser/electro-optics technology. Examples of subject areas for the above areas of concentration are integrated optic and optoelectronic devices, high-power laser arrays (e.g. diode, CO2), free electron lasers, solid, state lasers, laser materials'' interactions and femtosecond laser techniques. The letters journal publishes engineering, applied physics and physics oriented papers. Emphasis is on rapid publication of timely manuscripts. A goal is to provide a focal point of quality engineering-oriented papers in the electro-optics field not found in other rapid-publication journals.