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<p>Integrated sensing and communication (ISAC) over deployed telecom cables is a trending application. Leveraging optoelectronic components and digital signal processing algorithms developed for telecom applications, and the ubiquity of telecom cables, it is possible to mass deploy powerful and flexible sensing interrogators at low cost. The resulting widespread coverage by remote sensing will lead to a revolution in applications. In this paper, we review two sensing methods based on (i) measurement of Rayleigh backscatter, and (ii) measurement of integrated phase or SOP change in forward transmission. We highlight the respective advantages and challenges of each method in terms of perturbation sampling rate, measurement range, spatial resolution, and network compatibility. Recent developments aimed at improving sensor performance are also discussed. Finally, we review examples of commercial applications and recent experimental results.</p>

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Integrated sensing and communications over deployed terrestrial and submarine telecom cables

  • 期刊论文

  • 发表日期：

    2026年5月22日

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  • Ezra Ip,
  • Yue-Kai Huang,
  • Ming-Fang Huang,
  • Fatih Yaman,
  • Jian Fang,
  • Ting Wang

摘要

Integrated sensing and communication (ISAC) over deployed telecom cables is a trending application. Leveraging optoelectronic components and digital signal processing algorithms developed for telecom applications, and the ubiquity of telecom cables, it is possible to mass deploy powerful and flexible sensing interrogators at low cost. The resulting widespread coverage by remote sensing will lead to a revolution in applications. In this paper, we review two sensing methods based on (i) measurement of Rayleigh backscatter, and (ii) measurement of integrated phase or SOP change in forward transmission. We highlight the respective advantages and challenges of each method in terms of perturbation sampling rate, measurement range, spatial resolution, and network compatibility. Recent developments aimed at improving sensor performance are also discussed. Finally, we review examples of commercial applications and recent experimental results.