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
Proceedings ArticleDOI
Dislocated Fabry-Perot fiber cavity for strain measurement
Jing Liu,Ye Liu,Dongning Wang +2 more
TL;DR: In this paper, a Fabry-Perot (FP) fiber cavity was used for strain measurement by fusion splicing two etched singlemode fibers (SMFs) with core offset in X axis.
Proceedings ArticleDOI
Optical Fiber Tips Integrated with High-Q Fano-Resonance Pillar-Array Photonic-Crystals for High Sensitive Remote Sensing
TL;DR: In this paper, a convenient and compact fiber-optic sensor based on optical fiber-tips integrated with fano-resonance pillar-array photonic crystal is demonstrated, both ultrahigh Q-factor of 1.36×104 and high sensitivity of 226nm/RIU are achieved, and thus a promising candidate for remote sensing under harsh conditions.
Patent
Gain balanced nonlinear optical interferometer
TL;DR: In this article, a nonlinear fiber interferometer is disclosed suitable for fiber sensor and other applications. But it is not shown how to obtain phase-sensitive output power of probe and/or conjugate components.
Patent
Fiber bragg grating multi-point pressure sensing guidewire with birefringent component
TL;DR: In this paper, a system and method for detecting and measuring pressure within a region of a body lumen or vessel is presented, which includes a light source for transmitting light through a pathway of polarization maintaining fiber optic wire.
Use of Optical Fibers for Structural Health Monitoring of Aircraft Components
TL;DR: In this article, a validated technique for optical fiber embedding and extraction of data from optical fiber sensors to measure strain and modulus of elasticity is described, and a surface mounted component has been designed and manufactured using rapid prototyping for the protection of embedded optical fibers at the ingress/egress points to provide safety and integrity to optical fibers during manufacturing as well as cutting operation.
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.