DocumentCode
849644
Title
A Novel Fiber Bragg Grating Sensor Configuration for Long-Distance Quasi-Distributed Measurement
Author
Fu, H.Y. ; Liu, H.L. ; Chung, W.H. ; Tam, H.Y.
Author_Institution
Dept. of Electr. Eng., Hong Kong Polytech. Univ., Hong Kong
Volume
8
Issue
9
fYear
2008
Firstpage
1598
Lastpage
1602
Abstract
A novel fiber Bragg grating (FBG) sensor configuration using three broadband light sources of different wavelength bands for the interrogation of FBG sensors distributed over 75 km of fiber is proposed and demonstrated. Rayleigh backscattering was reduced and a 60-dB effective dynamic range was demonstrated.
Keywords
Bragg gratings; Rayleigh scattering; backscatter; distributed sensors; fibre optic sensors; light sources; superradiance; FBG sensor; Rayleigh backscattering; amplified spontaneous emission; broadband light sources; distance 75 km; fiber Bragg grating sensor; long-distance quasidistributed measurement; Backscatter; Bragg gratings; Dynamic range; Fiber gratings; Light sources; Optical fiber sensors; Sensor arrays; Sensor systems; Strain measurement; Temperature sensors; Amplified spontaneous emission (ASE) source; Rayleigh backscattering; dynamic range; fiber Bragg grating (FBG);
fLanguage
English
Journal_Title
Sensors Journal, IEEE
Publisher
ieee
ISSN
1530-437X
Type
jour
DOI
10.1109/JSEN.2008.929082
Filename
4609973
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