<p>With the rapid development of communication networks and artificial intelligence, large-scale deployment of optical fiber undersea has become essential to meet growing data demands. Recent advances have explored integrating environmental sensing capabilities with existing optical fiber infrastructure, leveraging both its extensive coverage and high sensitivity. This paper presents the principles and methods of distributed acoustic sensing (DAS), highlighting technical innovations that address challenges such as limited dynamic range, phase fading, and environmental noise. We demonstrate integrated sensing and communication (ISAC) systems using both wavelength-division multiplexing (WDM) and space-division multiplexing (SDM) techniques, enabling simultaneous high-capacity data transmission and distributed sensing. The applications of such system to achieve ocean wave analysis, seismic monitoring and ship detection with submarine optical fiber cables are discussed to illustrate the practical application of fiber-optic ISAC systems. In the end, the paper outlines future prospects for smart environment monitoring enabled by these integrated technologies.</p>

错误:搜索内容不能为空,请输入英文关键词
错误:关键词超出字数限制,请精简
高级检索

Intelligent submarine environmental monitoring based on fiber-optic integrated sensing and communication system

  • Xiaoliang Cao,
  • Zhongyang Li,
  • Xianhui Li,
  • Jingshun Pan,
  • Shaoyi Chen,
  • Yichang Wu,
  • Wenjin Huang,
  • Qingxin Lin,
  • Yingyu Chen,
  • Zhengyong Liu

摘要

With the rapid development of communication networks and artificial intelligence, large-scale deployment of optical fiber undersea has become essential to meet growing data demands. Recent advances have explored integrating environmental sensing capabilities with existing optical fiber infrastructure, leveraging both its extensive coverage and high sensitivity. This paper presents the principles and methods of distributed acoustic sensing (DAS), highlighting technical innovations that address challenges such as limited dynamic range, phase fading, and environmental noise. We demonstrate integrated sensing and communication (ISAC) systems using both wavelength-division multiplexing (WDM) and space-division multiplexing (SDM) techniques, enabling simultaneous high-capacity data transmission and distributed sensing. The applications of such system to achieve ocean wave analysis, seismic monitoring and ship detection with submarine optical fiber cables are discussed to illustrate the practical application of fiber-optic ISAC systems. In the end, the paper outlines future prospects for smart environment monitoring enabled by these integrated technologies.