A New Type of Etched Fiber Grating Hydrophone
Photonics, 2022 We propose a new type of fiber hydrophone composed of an etched fiber Bragg grating and a special packaging structure for detecting acoustic waves in the low-frequency band under water.
Wen-Fung Liu +4 more
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Pseudo-heterodyne signal processing scheme for interrogation of fiber Bragg grating sensor arrays [PDF]
, 1998 An intensity-based interrogation technique for arrays of fiber bragg grating (FBG) sensors is reported. The technique is based upon each FBG forming one mirror of a Michelson interferometer.
Clare K. Chatterjea +5 more
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Study of Optical Fiber Sensors for Cryogenic Temperature Measurements
Sensors, 2017 In this work, the performance of five different fiber optic sensors at cryogenic temperatures has been analyzed. A photonic crystal fiber Fabry-Pérot interferometer, two Sagnac interferometers, a commercial fiber Bragg grating (FBG), and a π-phase ...
Veronica De Miguel-Soto +8 more
doaj +1 more source
Tunable Spacing Dual-Wavelength Q-Switched Fiber Laser Based on Tunable FBG Device
Photonics, 2021 A tunable spacing dual-wavelength Q-switched fiber laser is experimentally demonstrated based on a fiber Bragg grating tunable device incorporated in an erbium-doped fiber laser (EDFL).
Nurnazifah M. Radzi +8 more
doaj +1 more source
Nanoscale resolution interrogation scheme for simultaneous static and dynamic fiber Bragg grating strain sensing [PDF]
, 2012 A combined interrogation and signal processing technique which facilitates high-speed simultaneous static and dynamic strain demodulation of multiplexed fiber Bragg grating sensors is described.
Perry, Marcus +3 more
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Optical fiber sensor for ultrasonic detection at high temperature
Nihon Kikai Gakkai ronbunshu, 2017 Because of the stable material property of optical fiber up to 1000℃, fiber-optic Bragg grating (FBG) sensor is considered as one of possible ultrasonic sensors used at ultrahigh temperature.
Fengming YU, Yoji OKABE
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Characterization of the response of fibre Bragg gratings fabricated in stress and geometrically induced high birefringence fibres to temperature and transverse load. [PDF]
, 2004 The transverse load and temperature sensitivities of fibre Bragg gratings (FBGs) fabricated in a range of commercially available stress and geometrically induced high birefringent (HiBi) fibres have been experimentally investigated.
Staines, Stephen E. +10 more
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Fiber Bragg Grating (FBG) sensors as flatness and mechanical stretching sensors [PDF]
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 2016 info:eu-repo/semantics ...
Abbaneo, Duccio +8 more
openaire +7 more sources
Fibre Bragg grating based effective soil pressure sensor for geotechnical applications [PDF]
, 2009 An effective-soil-pressure sensor for geotechnical applications based on Fibre Bragg Gratings is presented. The sensor simultaneous measures total soil pressure and pore pressure, allowing the calculation of the effective stress of soil.
Ricardo Correia +17 more
core +1 more source
IEEE Photonics Journal, 2013 A temperature-insensitive fiber-optic displacement sensing scheme by cascading the fiber up taper and Bragg grating is experimentally demonstrated.
Tao Qi +6 more
doaj +1 more source