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Related Experiment Video

Updated: Aug 2, 2025

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Advances in Multicore Fiber Interferometric Sensors.

Yucheng Yao1, Zhiyong Zhao1, Ming Tang1,2

  • 1Wuhan National Lab for Optoelectronics (WNLO), School of Optics and Electronic Information, Huazhong University of Science and Technology, Wuhan 430074, China.

Sensors (Basel, Switzerland)
|April 13, 2023
PubMed
Summary

Multicore fiber (MCF) interferometric sensors offer advantages over traditional sensors. This review details MCF sensor types and their applications in measuring diverse physical and chemical parameters.

Keywords:
Fabry–Perot interferometer (FPI)Mach–Zehnder interferometer (MZI)Michelson interferometer (MI)multicore fiber (MCF)optical fiber sensorssupermode interferometer (SMI)

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Area of Science:

  • Optoelectronics
  • Fiber Optics Sensing
  • Interferometry

Background:

  • Multicore fiber (MCF) interferometric sensors leverage unique fiber structures with multiple cores within a single cladding.
  • These sensors offer advantages like structural diversity, high integration, and space-division multiplexing compared to single-core fiber sensors.

Purpose of the Study:

  • To provide a comprehensive review of multicore fiber interferometric sensors.
  • To detail different types of MCF interferometric sensors and their recent advancements.
  • To compare the performance of various MCF sensors for diverse applications.

Main Methods:

  • Reviewing different configurations and operating principles of MCF interferometric sensors.
  • Analyzing the unique advantages of MCFs, including simple fabrication, compact size, and robustness.
  • Examining the application of MCFs in sensing parameters like temperature, strain, curvature, refractive index, vibration, and torsion.

Main Results:

  • MCF interferometric sensors demonstrate superior performance in various sensing applications.
  • The differential responses between cores enable advanced sensing capabilities, such as vector-bending sensing.
  • MCF sensors are suitable for measuring a wide range of physical and chemical parameters.

Conclusions:

  • MCF interferometric sensors represent a significant advancement in fiber optic sensing technology.
  • Their unique properties facilitate diverse and high-performance sensing applications.
  • Further research and development in MCF sensors promise expanded capabilities and applications.