Results 11 to 20 of about 143,838 (299)

Optical Fiber Temperature Sensors and Their Biomedical Applications

open access: yesSensors, 2020
The use of sensors in the real world is on the rise, providing information on medical diagnostics for healthcare and improving quality of life. Optical fiber sensors, as a result of their unique properties (small dimensions, capability of multiplexing ...
Paulo Roriz   +3 more
doaj   +3 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

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

Fiber optic jerk sensor

open access: yesOptics Express, 2022
Jerk is directly related to a physical mutation process of structural damage and human comfort. A fiber optic jerk sensor (FOJS) based on a fiber optic differentiating Mach–Zehnder interferometer is proposed. It can directly measure jerk by demodulating the phase of interference light, which avoids the high-frequency noise interference caused by ...
Huicong Li   +3 more
openaire   +2 more sources

Hybrid Plasmonic Fiber-Optic Sensors [PDF]

open access: yesSensors, 2020
With the increasing demand of achieving comprehensive perception in every aspect of life, optical fibers have shown great potential in various applications due to their highly-sensitive, highly-integrated, flexible and real-time sensing capabilities. Among various sensing mechanisms, plasmonics based fiber-optic sensors provide remarkable sensitivity ...
Miao Qi   +4 more
openaire   +4 more sources

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

Optical fiber sensor technology [PDF]

open access: yesIEEE Journal of Quantum Electronics, 1982
The current state of the art of optical fiber sensors is reviewed. The principles of operation are detailed and the various types of fiber sensors are outlined. Achievable performance and limitations are discussed and a description of technology used to fabricate the sensor is presented. The characteristics of acoustic, magnetic, gyro, laser diode, and
T.G. Giallorenzi   +6 more
openaire   +1 more source

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

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