Title :
Fiber-optic vibration sensing system based on a VCSEL-powered and lateral-offset tilted fiber grating
Author :
Guo, Tuan ; Huang, Yuheng ; Lu, Chao ; Tam, Hwa-Yaw ; Qiao, Xueguang
Author_Institution :
Dept. of Phys., Northwest Univ., Xian, China
Abstract :
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 has been demonstrated. Dynamic mechanical vibration measurement up to 200 Hz with signal to-noise ratio better than 40 dB has been achieved.
Keywords :
Bragg gratings; fibre optic sensors; light sources; surface emitting lasers; vibration measurement; VCSEL-powered fiber grating; dynamic mechanical vibration measurement; fiber-optic vibration sensing system; lateral-offset tilted fiber grating; light source; sensor head; vertical-cavity surface-emitting laser; Fiber gratings; Optical fiber sensors; Power harmonic filters; Signal to noise ratio; Vertical cavity surface emitting lasers; Vibrations;
Conference_Titel :
Communications and Photonics Conference and Exhibition (ACP), 2010 Asia
Conference_Location :
Shanghai
Print_ISBN :
978-1-4244-7111-9
DOI :
10.1109/ACP.2010.5682818
