High-Speed Mach-Zehnder-OTDR Distributed Optical Fiber Vibration Sensor Using Medium-Coherence Laser
Photonic Sensors, 2018 This article presents a high-speed distributed vibration sensing based on Mach-Zehnder-OTDR (optical time-domain reflectometry). Ultra-weak fiber Bragg gratings (UWFBG), whose backward light intensity is 2-4 orders of magnitude higher than that of ...
Yuheng Tong +4 more
doaj +1 more source
Recent Progress in Fiber-Optic Hydrophones
Photonic Sensors, 2021 Fiber-optic hydrophone (FOH) is a significant type of acoustic sensor, which can be used in both military and civilian fields such as underwater target detection, oil and natural gas prospecting, and earthquake inspection.
Z. Meng +5 more
semanticscholar +1 more source
Versatile Vibration Sensing Using a Tapered Photonic Crystal Fiber With a Featured Core
IEEE Photonics Journal, 2020 On the basis of intensity modulation, a vibration sensor using a tapered photonic crystal fiber (PCF) is demonstrated. The fiber is a solid-core PCF with a central air hole embedded in the core region.
Haihu Yu +4 more
doaj +1 more source
Fiber-Optic Localized Surface Plasmon Resonance Sensors Based on Nanomaterials
Italian National Conference on Sensors, 2021 Applying fiber-optics on surface plasmon resonance (SPR) sensors is aimed at practical usability over conventional SPR sensors. Recently, field localization techniques using nanostructures or nanoparticles have been investigated on optical fibers for ...
Seung-Hun Lee +5 more
semanticscholar +1 more source
Fiber Optic Sensors Based on the Faraday Effect
Italian National Conference on Sensors, 2021 Some 175 years ago Michael Faraday discovered magnetic circular birefringence, now commonly known as the Faraday effect. Sensing the magnetic field through the influence that the field has on light within the fiber optic sensor offers several advantages,
P. Mihailovic, S. Petricevic
semanticscholar +1 more source
Self-Referencing Fiber-Optic Intensity Sensors Using Ring Resonators and Fiber Bragg Gratings [PDF]
, 2006 An improved ring resonator self-referencing technique in a new reflection configuration for remote fiber-optic intensity sensors is demonstrated using fiber Bragg gratings. Sensor sensitivity doubles and a single fiber lead is used.
Sánchez-Pena, José Manuel +6 more
core +3 more sources
New multiplexing scheme for monitoring fiber optic Bragg grating sensors in the coherence domain
, 1997 A new multiplexing scheme for monitoring fiber optic Bragg gratings in the coherence domain has been developed. Grating pairs with different grating distances are distributed along a fiber line, and interference between their reflections is monitored ...
Usbeck, K. +11 more
core +2 more sources
Fiber-Optic Microstructure Sensors: A Review
Photonic Sensors, 2021 This paper reviews a wide variety of fiber-optic microstructure (FOM) sensors, such as fiber Bragg grating (FBG) sensors, long-period fiber grating (LPFG) sensors, Fabry-Perot interferometer (FPI) sensors, Mach-Zehnder interferometer (MZI) sensors ...
Zeng-Ling Ran +8 more
semanticscholar +1 more source
A High-Sensitivity Dual-Axis Accelerometer with Two FP Cavities Assembled on Single Optical Fiber
Sensors, 2022 In this paper, a dual-axis Fabry–Pérot (FP) accelerometer assembled on single optical fiber is proposed. The sensor is equipped with a special beam-splitting prism to split the light into two perpendicular directions (the X- and Y-axes); the prism ...
Bolun Zheng +5 more
doaj +1 more source
Polarization properties of interferometrically interrogated fiber Bragg grating and tandem-interferometer strain sensors [PDF]
, 2006 Lead sensitivity in low-coherence interferometric fiber-optic sensors is a well-known problem. It can lead to a severe degradation in the sensor resolution and accuracy through its effect on the fringe visibility and interferometric phase.
Flockhart, G M H +2 more
core +4 more sources