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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Single-Mode, 700%-Stretchable, Elastic Optical Fibers Made of Thermoplastic Elastomers
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Fiber directional position sensor based on multimode interference imaging and machine learning.
TL;DR: A fiber directional position sensor based on multimode interference and image processing by machine learning is presented and can achieve over 60% accuracy in recognizing positions on a 5 µm resolution with a larger dataset, approaching the limit of the chosen translation stage.
Journal ArticleDOI
High temperature (up to 950 °C) sensor based on micro taper in-line fiber Mach-Zehnder interferometer
TL;DR: In this article, a high temperature (up to 950 °C) sensor was proposed and demonstrated based on a micro taper in-line fiber Mach-Zehnder interferometer (MZI) structure.
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An electro-tunable Fabry–Perot interferometer based on dual mirror-on-mirror nanoplasmonic metamaterials
TL;DR: In this article, the authors proposed an electro-tunable Fabry-Perot interferometer (FPI) with two parallel mirrors, each composed of a monolayer of NPs self-assembled on a thin metallic electrode, which is filled with an aqueous solution.
Book
Optical Sensors for Biomedical Diagnostics and Environmental Monitoring
TL;DR: Optical sensors for biomedical diagnostics and environmental monitoring is an essential resource for students, established researchers, and industry developers in need of a reference work on both the fundamentals and latest advances in optical fiber sensor technology as mentioned in this paper.
References
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