Fabrication

Materials science

Optical fiber

Fabry–Pérot interferometer

Fiber optic sensor

Wavelength

Alternative medicine

Physics

Michelson interferometer

Optics

Interferometry

Astronomical interferometer

Medicine

Optoelectronics

Pathology

Sensors

Optical fibers have been involved in the area of sensing applications for more than four decades. Moreover, interferometric optical fiber sensors have attracted broad interest for their prospective applications in sensing temperature, refractive index, strain measurement, pressure, acoustic wave, vibration, magnetic field, and voltage. During this time, numerous types of interferometers have been developed such as Fabry-Perot, Michelson, Mach-Zehnder, Sagnac Fiber, and Common-path interferometers. Fabry-Perot interferometer (FPI) fiber-optic sensors have been extensively investigated for their exceedingly effective, simple fabrication as well as low cost aspects. In this study, a wide variety of FPI sensors are reviewed in terms of fabrication methods, principle of operation and their sensing applications. The chronology of the development of FPI sensors and their implementation in various applications are discussed.

Chronology of Fabry-Perot Interferometer Fiber-Optic Sensors and Their Applications: A Review