Journal ArticleDOI
Compact fiber-optic curvature sensor based on super-mode interference in a seven-core fiber.
G. Salceda-Delgado,A. Van Newkirk,Jose Enrique Antonio-Lopez,Alejandro Martinez-Rios,Axel Schülzgen,R. Amezcua Correa +5 more
Reads0
Chats0
TLDR
A compact, low loss, and highly sensitive optical fiber curvature sensor is presented, which allows for using either visibility or spectral shift for sensor interrogation when the device is bent.Abstract:
A compact, low loss, and highly sensitive optical fiber curvature sensor is presented. The device consists of a few-millimeter-long piece of seven-core fiber spliced between two single-mode fibers. When the optical fiber device is kept straight, a pronounced interference pattern appears in the transmission spectrum. However, when the device is bent, a spectral shift of the interference pattern is produced, and the visibility of the interference notches changes. This allows for using either visibility or spectral shift for sensor interrogation. The dynamic range of the device can be tailored through the proper selection of the length of the seven-core fiber. The effects of temperature and refractive index of the external medium on the response of the curvature sensor are also discussed. Linear sensitivity of about 3000 nm/mm−1 for bending was observed experimentally.read more
Citations
More filters
Proceedings ArticleDOI
Simulation of an In-Line Optofluidic Refractive Index Sensor Based on a Seven-Liquid-Core Teflon-Cladding Fiber
TL;DR: In this article , a modal interferometer based on a section of liquid-filled seven-hole Teflon-cladding fiber sandwiched by two standard single mode fibers (SMFs) was proposed and theoretically demonstrated.
Journal ArticleDOI
Tuning of optical fiber laser based on super-mode interference in a seven-core fiber
R. G. Vallejo-Carrillo,G. Salceda-Delgado,María Esthela Torres-Torres,Rodrigo Amezcua-Correa,Jose Enrique Antonio-Lopez +4 more
TL;DR: In this article , a super-mode Mach-Zehnder interferometer was used to tune optical fiber laser emissions based on supermode interference in a seven core fiber (SCF) with a few millimeters of SCF spliced between two single mode fibers.
Proceedings ArticleDOI
Sensors Based on Dual Supermode Interferometers
TL;DR: Compact interferometers composed by two slightly different segments of asymmetric multicore fiber fusion spliced and rotated 180° with respect to each other are proposed for sensing applications.
Journal ArticleDOI
Advances in Multicore Fiber Interferometric Sensors
TL;DR: A review of multicore fiber interferometric sensors is given in this article , where the basic configurations and operating principles are introduced for each inter-ferometric structure, and, eventually, the performances of various MCF interfometric sensors are compared, including curvature sensing, vibration sensing, temperature sensing, and refractive index sensing.
Proceedings ArticleDOI
Axial hexagonal evanescent fields in tapered multicore fiber for nanoparticles trapping and microsensing
Zhen Tian,Nan-Kuang Chen,Dong Yan,Kenneth T. V. Grattan,B. M. A. Rahman,Liqiang Zhang,Daqin Wang,Perry Ping Shum,Qiang Wu +8 more
TL;DR: In this article, up-conversion nanoparticles are attracted and aligned by hexagonal evanescent fields to generate supermode interference effects with the best extinction ratio, 47.4dB and tuning efficiency, 392nm/RIU.
References
More filters
Journal ArticleDOI
Curvature loss formula for optical fibers
TL;DR: In this article, the curvature loss for optical fibers with constant radius of curvature of their axes is derived by expressing the field outside of the fiber in terms of a superposition of cylindrical outgoing waves.
Journal ArticleDOI
Refractometry based on a photonic crystal fiber interferometer
TL;DR: A simple and compact modal interferometer for applications in refractometry that is highly stable over time, has low temperature sensitivity, and is suitable for measuring indices in the 1.330-1.440 range is reported.
Journal ArticleDOI
Single-Mode Fiber Refractive Index Sensor Based on Core-Offset Attenuators
TL;DR: In this paper, a fiber Michelson interferometer refractive index (RI) sensor with a single core-offset attenuator and a layer of ~ 500-nm gold coating was demonstrated.
Journal ArticleDOI
Optical bend sensor based on measurement of resonance mode splitting of long-period fiber grating
TL;DR: In this article, an effective method of realizing optical bend sensing based on the measurement of bending-curvature encoded resonance mode splitting of long-period fiber grating was proposed.
Journal ArticleDOI
Multicore fiber sensor for high-temperature applications up to 1000°C
J. Enrique Antonio-Lopez,Zeinab Sanjabi Eznaveh,Patrick LiKamWa,Axel Schülzgen,Rodrigo Amezcua-Correa +4 more
TL;DR: A novel high temperature sensor based on customized multicore fiber (MCF) spliced between two standard single-mode fibers is proposed and experimentally demonstrated, enabling temperature measurements with high sensitivity and accuracy.