Interferometric Fiber Optic Sensors
Byeong Ha Lee,Youngho Kim,Kwan Seob Park,Joo Beom Eom,Myoung Jin Kim,Byung Sup Rho,Hae Young Choi +6 more
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TLDR
Each type of interferometric sensor is reviewed in terms of operating principles, fabrication methods, and application fields and some specific examples of recently reported interferometeric sensor technologies are presented in detail to show their large potential in practical applications.Abstract:
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.read more
Citations
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Journal ArticleDOI
Fabrication and measurement of fiber optic localized surface plasmon resonance sensor based on gold nanoparticle dimer.
TL;DR: In this paper, the authors fabricate the dimers of gold nanoparticles on the optical fiber with benzenethiol using a method that reduces the repulsive force between the nanoparticles.
Patent
Michelson interferometric optical-fiber hydrogen sensor based on PM-PCF
Bao Lifeng,Shen Changyu +1 more
TL;DR: In this article, a Michelson interferometric optical-fiber hydrogen sensor based on a PM-PCF is presented, which is composed of a broadband laser source, a polarization controller, a first transmission optical fiber, a 3-dB coupler, a second transmission optical fibre, the PM-Pd/Ag thin film, a third transmission optical fibres, a fourth transmission optical fibers, a spectrograph and a constant-temperature air chamber.
Proceedings ArticleDOI
Optical fibre fuse effect based sensor for magnetic field monitoring
Nélia Alberto,M. Fátima Domingues,J. H. Belo,Carlos Marques,Paulo Antunes,Vitor S. Amaral,Paulo André +6 more
TL;DR: In this paper, the magnetic field was monitored using a Fabry-Perot micro-cavity, produced from the recycling of optical fiber previously destroyed by the catastrophic fuse effect.
Journal ArticleDOI
A Voyage from Plasmonic to Hybrid Waveguide Refractive Index Sensors Based on Wavelength Interrogation Technique: a Review
Patent
Fiber-optic temperature and flow sensor system and methods
Ming Han,Guigen Liu,Weilin Hou +2 more
TL;DR: In this paper, a fiber optic sensor is described, where a double-side-polished silicon pillar is attached to an optical fiber tip and forms a Fabry-Perot cavity.
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