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Updated: Mar 15, 2026

A Silicon-tipped Fiber-optic Sensing Platform with High Resolution and Fast Response
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Research Progress on F-P Interference-Based Fiber-Optic Sensors.

Yi Wen Huang1, Jin Tao2, Xu Guang Huang3,4

  • 1Guangzhou Key Laboratory for Special Fiber Photonic Devices and Applications, School of Information and Optoelectronic Science and Engineering, South China Normal University, Guangzhou 510006, China. 20133203051@m.scnu.edu.cn.

Sensors (Basel, Switzerland)
|September 7, 2016
PubMed
Summary

Fabry-Perot (F-P) fiber-optic sensors offer versatile applications. These sensors accurately measure refractive index, temperature, and displacement by analyzing interference fringe characteristics.

Keywords:
F-P cavityfringe contrastinterferometric fiber optic sensorwavelength shift

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Area of Science:

  • Optics and Photonics
  • Fiber Optic Sensing Technology

Background:

  • Fabry-Perot (F-P) interferometers are optical cavities used in various sensing applications.
  • Fiber-optic sensors offer advantages like remote sensing and immunity to electromagnetic interference.

Purpose of the Study:

  • To review works on Fabry-Perot (F-P) interferometric fiber-optic sensors.
  • To present a general model for F-P interferometric fiber-optic sensors.
  • To highlight diverse applications of these sensors.

Main Methods:

  • Development of a general model for F-P interferometric optical fiber sensors.
  • Incorporation of diffraction loss due to beam divergence and Gouy phase shift into the model.
  • Design of F-P cavities at the end of single-mode fibers for specific measurements.

Main Results:

  • F-P interferometric sensors can measure the refractive index (RI) of liquids and solids by monitoring fringe contrast.
  • Ambient temperature and small displacement are measurable via wavelength shifts of interference fringes.
  • The sensor design is adaptable for various scientific and technological applications.

Conclusions:

  • Fabry-Perot (F-P) interferometric fiber-optic sensors provide a robust platform for diverse measurements.
  • The presented model enhances understanding and application of these sensors.
  • These sensors hold significant potential for numerous scientific and technological fields.