Title :
Fiber-optic vibration sensing system using a VCSEL-powered tilted fiber grating
Author :
Huang, Yuheng ; Guo, Tuan ; Lu, Chao ; Tam, Hwa-Yaw ; Wai, P.K.A.
Author_Institution :
Dept. of Electron. & Inf. Eng., Hong Kong Polytech. Univ., Kowloon, China
Abstract :
We propose a compact tip-reflection fiber-optic vibration sensing system that uses a lateral-offset tilted fiber grating (TFBG) as sensor head and a vertical-cavity surface-emitting laser (VCSEL) as light source. Dynamic mechanical vibration measurement up to 200 Hz with signal-to-noise ratio better than 30 dB has been achieved.
Keywords :
diffraction gratings; fibre optic sensors; surface emitting lasers; vibration measurement; VCSEL-powered tilted fiber grating; compact tip-reflection fiber-optic vibration sensing system; dynamic mechanical vibration measurement; lateral-offset tilted fiber grating; light source; signal-to-noise ratio; vertical-cavity surface-emitting laser; Fiber gratings; Optical fiber sensors; Signal to noise ratio; Vertical cavity surface emitting lasers; Vibrations;
Conference_Titel :
OptoElectronics and Communications Conference (OECC), 2010 15th
Conference_Location :
Sapporo
Print_ISBN :
978-1-4244-6785-3
