Results 11 to 20 of about 3,470,986 (285)

High-speed, solid state, interferometric interrogator and multiplexer for fiber Bragg grating sensors [PDF]

open access: yes, 2011
We report on the design and prototyping of a robust high-speed interferometric multiplexer and interrogator for fiber Bragg grating sensors. The scheme is based on the combination of active WDM channel switching and passive, instantaneous interferometry,
Niewczas, Pawel, Orr, Philip
core   +4 more sources

Efficient large-scale multiplexing of fiber Bragg grating and fiber Fabry-Perot sensors for structural health monitoring applications [PDF]

open access: yes, 2006
Fiber Bragg gratings have been demonstrated as a versatile sensor for structural health monitoring. We present an efficient and cost effective multiplexing method for fiber Bragg grating and fiber Fabry-Perot sensors based on a broadband mode-locked ...
Kirkendall, C. K.   +2 more
core   +4 more sources

Fabry–Perot Cavity Optimization for Absolute Strain Sensing Using Finite Element Analysis

open access: yesSensors, 2023
The finite element method (FEM) was used to investigate the optical–mechanical behavior of a Fabry–Perot Interferometer (FPI) composed of a capillary segment spliced between two sections of standard optical fiber. The developed FEM model was validated by
João M. B. Pereira   +4 more
doaj   +1 more source

Quadratic behavior of fiber Bragg grating temperature coefficients [PDF]

open access: yes, 2004
We describe the characterization of the temperature and strain responses of fiber Bragg grating sensors by use of an interferometric interrogation technique to provide an absolute measurement of the grating wavelength. The fiber Bragg grating temperature
Flockhart, G M H   +9 more
core   +4 more sources

High-Efficiency Inscription of Fiber Bragg Grating Array with High-Energy Nanosecond-Pulsed Laser Talbot Interferometer

open access: yesSensors, 2020
A high-energy nanosecond-pulsed ultraviolet (UV) laser Talbot interferometer for high-efficiency, mass production of fiber Bragg grating (FBG) array was experimentally demonstrated.
Zhe Zhang   +5 more
doaj   +1 more source

Dual-Polarization Distributed Feedback Fiber Laser Sensor Based on Femtosecond Laser-Inscribed In-Fiber Stressors for Simultaneous Strain and Temperature Measurements

open access: yesIEEE Access, 2020
We propose and experimentally demonstrate a novel dual-polarization distributed feedback fiber laser (DFB-FL) sensor based on femtosecond laser-inscribed in-fiber stressors. The resonant cavity of the DFB-FL sensor consists of a phase-shifted fiber Bragg
Kuikui Guo   +3 more
doaj   +1 more source

Recent Advances in Optical Fiber Enabled Radiation Sensors

open access: yesSensors, 2022
Optical fibers are being widely utilized as radiation sensors and dosimeters. Benefiting from the rapidly growing optical fiber manufacturing and material engineering, advanced optical fibers have evolved significantly by using functional structures and ...
Jing Zhang   +5 more
doaj   +1 more source

Fiber-Optic Chemical Sensors and Fiber-Optic Bio-Sensors [PDF]

open access: yesSensors, 2015
This review summarizes principles and current stage of development of fiber-optic chemical sensors (FOCS) and biosensors (FOBS). Fiber optic sensor (FOS) systems use the ability of optical fibers (OF) to guide the light in the spectral range from ultraviolet (UV) (180 nm) up to middle infrared (IR) (10 μm) and modulation of guided light by the ...
Marie Pospísilová   +2 more
openaire   +4 more sources

Optical Fiber Probe Microcantilever Sensor Based on Fabry–Perot Interferometer

open access: yesSensors, 2022
Optical fiber Fabry–Perot sensors have long been the focus of researchers in sensing applications because of their unique advantages, including highly effective, simple light path, low cost, compact size, and easy fabrication.
Yongzhang Chen   +7 more
doaj   +1 more source

Optical Fiber Integrated Functional Micro-/Nanostructure Induced by Two-Photon Polymerization

open access: yesFrontiers in Materials, 2020
Owing to the limitation of optical fiber materials and conventional fabrication methods, the development of optical fiber devices has encountered a bottleneck.
Cong Xiong   +13 more
doaj   +1 more source

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