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
Temperature dependence of a refractive index sensor based on a bent core-offset in-line fiber Mach-Zehnder interferometer
TL;DR: In this paper, a bent core-offset in-line fiber Mach-Zehnder Interferometer (MZI) as a refractive index (RI) sensor was fabricated by using a commercial fusion splicer.
Proceedings ArticleDOI
A dual tapered Mach-Zehnder interferometer for magnetic field sensing
E. A. Hernandez-Robles,Julian M. Estudillo-Ayala,Juan Manuel Sierra-Hernández,Daniel Jauregui-Vazquez,Juan C. Hernandez-Garcia,Roberto Rojas-Laguna,J. R. Martinez-Angulo +6 more
TL;DR: In this paper, a magnetic field sensor based on a Mach-Zehnder interferometer with standard single mode fiber (SMF-28) is proposed, which is developed by using tapered optical fiber technique.
Journal ArticleDOI
A Mach-Zehnder Fabry-Perot hybrid fiber-optic interferometer operating at the thermal noise limit
TL;DR: In this article , a double-path configuration and an optical resonator were combined with a Mach-Zehnder Fabry-Perot hybrid scheme to achieve high strain and phase resolutions.
Journal ArticleDOI
Cascaded-Cavity Design for Reducing the Nonlinearity Effect in a Fiber Refractometer Based on C-OFDR
TL;DR: In this paper, two-cascaded cavities, used as sensing head, are used to improve the performance of a fiber refractometer, which makes use of the Coherent-OFDR technique.
Journal ArticleDOI
All-Fiber Source of Broadband Light With Modulated Spectrum Based on Twin-Core Fiber
TL;DR: In this article, an all-fiber source of broadband (visible or near infrared) light with modulated spectrum pumped by a picosecond Nd:YAG laser (1064 or 532 nm) is presented.
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.