DocumentCode
1559647
Title
Distributed fiber Brillouin strain sensing with 1-cm spatial resolution by correlation-based continuous-wave technique
Author
Hotate, Kazuo ; Tanaka, Masato
Author_Institution
Tokyo Univ., Japan
Volume
14
Issue
2
fYear
2002
Firstpage
179
Lastpage
181
Abstract
This letter describes improvement in the spatial resolution of distributed fiber Brillouin strain sensing by the correlation-based continuous-wave technique, which we proposed previously. The spatial resolution of 1 cm has been achieved for a partly stretched fiber. This result shows the technique is applicable to smart structures or materials as a nervous system to monitor strain distribution.
Keywords
distributed sensors; fibre optic sensors; intelligent sensors; intelligent structures; optical correlation; stimulated Brillouin scattering; strain sensors; FM frequency dependence; correlation-based continuous-wave technique; distributed fiber Brillouin strain sensing; partly stretched fiber; position-selective generation; smart structures; spatial resolution; stimulated Brillouin scattering; Acoustic measurements; Acoustic pulses; Brillouin scattering; Capacitive sensors; Frequency; Optical fiber sensors; Optical fibers; Pulse measurements; Shape; Spatial resolution;
fLanguage
English
Journal_Title
Photonics Technology Letters, IEEE
Publisher
ieee
ISSN
1041-1135
Type
jour
DOI
10.1109/68.980502
Filename
980502
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