DocumentCode
1126329
Title
Ultra-Long-Distance Fiber Bragg Grating Sensor System
Author
Saitoh, Takanori ; Nakamura, Kenichi ; Takahashi, Yoshifumi ; Iida, Hiroyuki ; Iki, Yoshimitsu ; Miyagi, Koichiro
Author_Institution
Core Technol. R&D Center, Kanagawa
Volume
19
Issue
20
fYear
2007
Firstpage
1616
Lastpage
1618
Abstract
A long-distance fiber Bragg grating (FBG) sensor system has been developed using a wavelength-swept light source with output power turned on-off and timing synchronized to the sweep signal to reduce optical noise caused by Rayleigh scattering generated from the transmission fiber. This system can detect changes in the FBG reflection wavelengths even if the FBG is 120 km from the sensing position.
Keywords
Bragg gratings; Rayleigh scattering; fibre optic sensors; optical fibres; optical noise; reflectivity; Rayleigh scattering; fiber Bragg grating sensor system; optical noise; reflection wavelengths; timing synchronization; transmission fiber; wavelength-swept light source; Bragg gratings; Fiber gratings; Light sources; Optical fiber sensors; Optical noise; Power generation; Rayleigh scattering; Sensor systems; Signal generators; Timing; Optical fibers; Rayleigh scattering; strain measurement; wavelength measurement;
fLanguage
English
Journal_Title
Photonics Technology Letters, IEEE
Publisher
ieee
ISSN
1041-1135
Type
jour
DOI
10.1109/LPT.2007.904918
Filename
4305231
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