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
Journal ArticleDOI
Compact refractive index sensor based on an S-tapered fiber probe
Chao Chen,Rui Yang,Xuan-Yu Zhang,Wei-Hua Wei,Qi Guo,Xing Zhang,Li Qin,Yongqiang Ning,Yong-Sen Yu +8 more
TL;DR: In this article, an S-tapered fiber probe (STFP) with a silver mirror on its end facet has been demonstrated for a refractive index (RI) sensor.
Journal ArticleDOI
Open-Cavity Fabry-Perot Interferometer Based on Etched Side-Hole Fiber for Microfluidic Sensing
TL;DR: In this article, an open-cavity fiber-optic Fabry-Perot interferometer (FPI) is designed and demonstrated, with a particular consideration for microfluidic refractive index (RI) sensing.
Journal ArticleDOI
Revisiting twin-core fiber sensors for high-temperature measurements
Patrik Rugeland,Walter Margulis +1 more
TL;DR: A twin-core fiber Michelson interferometer is evaluated as a high-temperature sensor and the refractive index shifts plastically and hysteresis is observed, rendering an untreated sensor head unusable at higher temperatures.
Journal ArticleDOI
Poly(vinyl alcohol) hydrogel based fiber interferometer sensor for heavy metal cations
TL;DR: In this article, a Mach Zehnder fiber interferometer is demonstrated for sensing of the heavy metal cation, Ni2+ using a responsive polyvinyl alcohol (PVA) based hydrogel.
Journal ArticleDOI
Simultaneous multi-parameter measurement using Sagnac loop hybrid interferometer based on a highly birefringent photonic crystal fiber with two asymmetric cores
TL;DR: The proposed all-fiber Sagnac loop hybrid interferometer has the advantages such as simplicity of the device structure, compact device size, and capability for simultaneous sensing of multiple parameters.
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.