Interferometric Fiber Optic Sensors
By B. Lee, Young Ho Kim, Kwan Seob Park, J. Eom, M. Kim, B. Rho, H. Choi. Italian National Conference on Sensors, 2012
639 citations recorded by the source corpus.
Fiber optic interferometers to sense various physical parameters including temperature, strain, pressure, and refractive index have been widely investigated. They can be categorized into four types: Fabry-Perot, Mach-Zehnder, Michelson, and Sagnac. In this paper, each type of interferometric sensor is reviewed in terms of operating principles, fabrication methods, and application fields. Some specific examples of recently reported interferometeric sensor technologies are presented in detail to show their large potential in practical applications. Some of the simple to fabricate but exceedingly effective Fabry-Perot interferometers, implemented in both extrinsic and intrinsic structures, are discussed. Also, a wide variety of Mach-Zehnder and Michelson interferometric sensors based on photonic crystal fibers are introduced along with their remarkable sensing performances. Finally, the simultaneous multi-parameter sensing capability of a pair of long period fiber grating (LPG) is presented in two types of structures; one is the Mach-Zehnder interferometer formed in a double cladding fiber and the other is the highly sensitive Sagnac interferometer cascaded with an LPG pair.
Subfields: Atomic and Molecular Physics, and Optics, Electrical and Electronic Engineering
View Paper: https://www.semanticscholar.org/paper/a7c85aa5d0be3a2e4b8eaa1e0b3bc855c2950207
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In Atomic and Molecular Physics, and Optics
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Citations in the corpus
- Overview of Fiber Optic Sensor Technologies for Strain/Temperature Sensing Applications in Composite Materials (2016, background): “A Fabry-Perot interferometer (FPI) generally comprises of two parallel reflecting surfaces separated by a certain distance [66].”
- Fibre Optic Sensors for Structural Health Monitoring of Aircraft Composite Structures: Recent Advances and Applications (2015, methodology): “Sensors based on the Mach-Zender, and Michelson interferometers, also using long period gratings (LPGs) and photonic crystal fibres (PCFs) [14,15], have been used preferably for refractive index [16], temperature [17] or velocity measurement [18], while the Sagnac interferometer has been applied mai”
- Singlemode-Multimode-Singlemode Fiber Structures for Sensing Applications—A Review (2021, neutral): “wavelength, intensity, phase or bandwidth [21].”
- Chronology of Fabry-Perot Interferometer Fiber-Optic Sensors and Their Applications: A Review (2014, background): “To the extent of the authors‘ knowledge, there are a few review articles that have partly talked about the common fabrication, sensing technologies and measurands of Fabry-Perot Interferometric fiber-optic sensors, including [44], which only covers microcavities that play a significant role in formi”
- Recent Advances and Tendency in Fiber Bragg Grating-Based Vibration Sensor: A Review (2020, background): “FOVS based on interferometric demodulation are easy to align and can provide high coupling efficiency and stability [13].”