Results 21 to 30 of about 1,836,988 (297)

An Optical Fiber Sensor Based on La₂O₂S:Eu Scintillator for Detecting Ultraviolet Radiation in Real-Time

Sensors, 2018
A novel ultraviolet (UV) optical fiber sensor (UVOFS) based on the scintillating material La2O2S:Eu has been designed, tested, and its performance compared with other scintillating materials and other conventional UV detectors. The UVOFS is based on PMMA
Yongji Yan, Xu Zhang, Haopeng Li, Yu Ma, Tianci Xie, Zhuang Qin, Shuangqiang Liu, Weimin Sun, Elfed Lewis   +8 more
doaj   +1 more source

A Highly-Sensitive Temperature-Sensor Based on a Microfiber Knot-Resonator Packaged in Polydimethylsiloxane

IEEE Photonics Journal, 2021
In this paper, a microfiber knot resonator (MKR) was encapsulated in polydimethylsiloxane (PDMS), and its capability to sense temperature was experimentally evaluated.
Hongtao Dang, Mingshu Chen, Jin Li
doaj   +1 more source

Optical fiber sensor technology [PDF]

IEEE 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
Giallorenzi, Thomas G., Bucaro, Joseph A., Dandridge, Anthony, Sigel, G. H., Cole, James H., Rashleigh, Scott C., Priest, Richard G.   +6 more
openaire   +2 more sources

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

, 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, P. Orr, Orr, Philip, P. Niewczas   +3 more
core   +3 more sources

Torsion Sensor with Rotation Direction Discrimination Based on a Pre-twisted In-Fiber Mach–Zehnder Interferometer

IEEE Photonics Journal, 2017
We demonstrate a torsion sensor with rotation direction discrimination based on a pre-twisted core-cladding mode Mach–Zehnder interferometer (MZI) fabricated in single mode fiber by twisting the fiber during CO2 laser irradiation to induce a ...
Zhiyong Bai, Mi Deng, Shen Liu, Zhe Zhang, JinShan Xu, Jian Tang, Ying Wang, Changrui Liao, Yiping Wang   +8 more
doaj   +1 more source

A Fiber-Optic Accelerometer Based on Extrinsic Fabry-Perot Interference for Low Frequency Micro-Vibration Measurement

IEEE Photonics Journal, 2022
A fiber-optic accelerometer based on extrinsic Fabry-Perot interferometer (EFPI) is reported. The sensor adopts flywheel diaphragm structure as a sensitive element, where the mass block is bonded in the center, while the beam of the flywheel acts as a ...
Peng Zhang, Shuang Wang, Junfeng Jiang, Zhiyuan Li, Haokun Yang, Tiegen Liu   +5 more
doaj   +1 more source

A Large Area Fiber Optic Gyroscope on multiplexed fiber network [PDF]

, 2013
We describe a fiber optical gyroscope based on the Sagnac effect realized on a multiplexed telecom fiber network. Our loop encloses an area of 20 km2 and coexists with Internet data traffic.
LEVI, FILIPPO, G. A. Costanzo, Levi, F., Costanzo, Giovanni Antonio, A. Mura, Pizzocaro, Marco, CALONICO, DAVIDE, M. Pizzocaro, D. Calonico, Clivati, Cecilia, Calonico, D., C. Clivati, F. Levi, Mura, A.   +13 more
core   +1 more source

Selective doping of Ni2+ in highly transparent glass-ceramics containing nano-spinels ZnGa2O4 and Zn1+x Ga2−2x Ge x O4 for broadband near-infrared fiber amplifiers

Scientific Reports, 2017
Selective doping of Ni2+ in octahedral sites provided by nanocrystals embedded in glass-ceramics (GCs) is crucial to the enhancement of broadband near-infrared (NIR) emission.
Zhigang Gao, Yinyao Liu, Jing Ren, Zaijin Fang, Xiaosong Lu, Elfed Lewis, Gerald Farrell, Jun Yang, Pengfei Wang   +8 more
doaj   +1 more source

Corrosion of Silica-Based Optical Fibers in Various Environments

Corrosion and Materials Degradation, 2023
This research article explores the potential of optical fibers as sensors, highlighting their ability to measure various parameters such as temperature, pressure, stress, and radiation dose.
Amanda Leong, Steven Derek Rountree, Jinsuo Zhang   +2 more
doaj   +1 more source

Quadratic behavior of fiber Bragg grating temperature coefficients [PDF]

, 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, Read, I, Foote, P D, Maier, R R J, Chisholm, K E, Barton, J S, Zhang, L, Bennion, I, MacPherson, W N, Jones, J D C   +9 more
core   +4 more sources