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The world’s oceans cover approximately 70.8% of the earth’s surface and are a crucial support system for the human ecological environment, significantly influencing the earth’s environment and climate. In recent years, research on fiber optic sensing technology in the field of ocean ecological environment observation has received extensive attention from scientific community. This paper reviews the recent progress in fiber optic sensors used in ocean ecological environment observation. Classified by measurement objects, these primarily include sensors for seawater temperature, pressure, salinity, flow velocity, and pH measurements. The paper briefly introduces the detection principles, structures, and performance of fiber optic sensors, tracks the latest research developments both domestically and internationally. Comparison has been made with traditional ocean water measurement methods. The analysis concludes that fiber optic sensors are an important complement to existing traditional ocean detectors and possess unique advantages in certain detection fields. We propose a laser-generated ultrasound flow measurement method based on the continuous time difference method. Finally, the future development trends of fiber optic sensing technology are discussed.

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Research Progress and Prospects of Fiber Optic Sensing Technology for Ocean Ecological Environment Observation

  • 会议论文

  • 发表日期：

    2026年

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  • Wenhui Kang,
  • Dongxin Xu,
  • Qi Wu,
  • Dongliang Xie,
  • Qiang Zhao,
  • Yi Qu,
  • Guojun Liu,
  • Zaijin Li,
  • Zhibin Zhao,
  • Linna Zeng,
  • Zhong Liang Qiao

摘要

The world’s oceans cover approximately 70.8% of the earth’s surface and are a crucial support system for the human ecological environment, significantly influencing the earth’s environment and climate. In recent years, research on fiber optic sensing technology in the field of ocean ecological environment observation has received extensive attention from scientific community. This paper reviews the recent progress in fiber optic sensors used in ocean ecological environment observation. Classified by measurement objects, these primarily include sensors for seawater temperature, pressure, salinity, flow velocity, and pH measurements. The paper briefly introduces the detection principles, structures, and performance of fiber optic sensors, tracks the latest research developments both domestically and internationally. Comparison has been made with traditional ocean water measurement methods. The analysis concludes that fiber optic sensors are an important complement to existing traditional ocean detectors and possess unique advantages in certain detection fields. We propose a laser-generated ultrasound flow measurement method based on the continuous time difference method. Finally, the future development trends of fiber optic sensing technology are discussed.