海底光缆传感

IF 5.4 1区 物理与天体物理 Q1 OPTICS
APL Photonics Pub Date : 2024-07-25 DOI:10.1063/5.0210825
Antonio Mecozzi
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引用次数: 0

摘要

在本文中,我们建立了一个理论框架,以了解巨型海底光缆的传感能力。我们展示了偏振相对于相位在探测亚赫兹环境过程中的明显优势。随后,我们提出了一种方案,能够通过检测背向反射光的偏振状态,提取影响光纤任意位置特定部分的扰动频谱。我们通过分析跨洋电缆接收器重建的光信号的偏振状态,讨论了地震探测以及海浪和海洋潮汐探测的两个例子,这些数据来自在线数据库[Z. Zhan,"居里数据 - Zhan 等人 (2021)" (2020)]。最后,我们提供了两个波分复用信道的偏振扰动交叉相关性的分析表达式,并表明分析相邻信道之间的偏振相关性可以为地震定位提供有价值的见解。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Sensing with submarine optical cables
In this paper, we establish the theoretical framework for understanding the sensing capabilities of megameter-long submarine optical cables. We show the distinct advantage of polarization over phase in detecting sub-hertz environmental processes. Subsequently, we propose a scheme capable of extracting the spectrum of perturbations affecting a specific section at any position along an optical fiber by detecting the state of polarization of the backreflected light. We discuss two examples of earthquake detection and the detection of sea swells and ocean tides through the analysis of the state of polarization of an optical signal reconstructed by the receiver of a transoceanic cable, obtained from an online database [Z. Zhan, “Curie Data - Zhan et al. (2021)” (2020)]. Finally, we provide the analytical expression for the cross correlation of the polarization perturbations of two wavelength division multiplexed channels and show that the analysis of the polarization correlations between adjacent channels can provide valuable insights into the localization of earthquakes.
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来源期刊
APL Photonics
APL Photonics Physics and Astronomy-Atomic and Molecular Physics, and Optics
CiteScore
10.30
自引率
3.60%
发文量
107
审稿时长
19 weeks
期刊介绍: APL Photonics is the new dedicated home for open access multidisciplinary research from and for the photonics community. The journal publishes fundamental and applied results that significantly advance the knowledge in photonics across physics, chemistry, biology and materials science.
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