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
Reads0
Chats0
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
More filters
Uric Acid Detection in UV Region
TL;DR: In this article, the authors proposed a spectroscopic technique to analyze uric acid (UA) concentration using Ultraviolet (UV) spectrometer, which shows fast time response i.e., 1s.
Journal ArticleDOI
Identification of Volatile Organic Liquids by Combining an Array of Fiber-Optic Sensors and Machine Learning
TL;DR: In this article , an array of fiber-optic sensors based on the Fabry-Perot interference principle and machine learning-based analyses for identifying volatile organic liquids (VOLs) was reported.
Proceedings ArticleDOI
Multiplexing Fiber Optic Interferometer Sensors Based on Multiband Microwave Photonic Filter
Zuowei Xu,Xuewen Shu +1 more
TL;DR: In this paper, a multiplexed fiber optic interferometer sensor proposal based on non-periodic multiband microwave photonic filter is proposed and experimentally demonstrated by tracing the center frequency of each pass band, the temperature of each sensor can be intuitionally deduced.
Proceedings ArticleDOI
Temperature Sensors Based on FBG and Folded Mach-Zehnder Interferometery
TL;DR: The phase variations in the reflected spectrum is analyzed as FBG is subjected to temperature variations and the phase modulation can be mapped on to corresponding intensity modulation using Folded Mach Zehnder interferometer which was implemented using MATLAB software.
References
More filters
MonographDOI
Introduction to Optics
TL;DR: In this paper, the authors present a comprehensive and engaging introduction to optics for intermediate and upper level undergraduate physics and engineering students, which allows instructors to select specialized content to suit individual curricular needs and goals.
Journal ArticleDOI
Fiber-Optic Sensors Based on Surface Plasmon Resonance: A Comprehensive Review
TL;DR: A detailed mechanism of the surface plasmon resonance (SPR) technique for sensing purposes has been discussed in this paper, where different new techniques and models in this area that have been introduced are discussed in quite a detail.
Journal ArticleDOI
Tapered fiber Mach–Zehnder interferometer for simultaneous measurement of refractive index and temperature
TL;DR: In this paper, an approach to achieve simultaneous measurement of refractive index and temperature is proposed by using a Mach-Zehnder interferometer realized on tapered single-mode optical fiber.
Journal ArticleDOI
Fiber Fabry-Perot cavity with high finesse
TL;DR: In this article, a fiber-based Fabry-Perot cavity with CO2 laser-machined mirrors was realized, which combines very small size, high finesse, small waist and mode volume, and good mode matching between the fiber and cavity modes.
Journal ArticleDOI
All-fiber Mach-Zehnder type interferometers formed in photonic crystal fiber.
TL;DR: As potential applications of the all-PCF interferometer, strain sensing is experimentally demonstrated and ultra-high temperature sensing is proposed.