DocumentCode
1428052
Title
Long period fibre gratings for structural bend sensing
Author
Patrick, H.J. ; Chang, C.C. ; Vohra, S.T.
Author_Institution
Opt. Techniques Branch, Naval Res. Lab., Washington, DC, USA
Volume
34
Issue
18
fYear
1998
fDate
9/3/1998 12:00:00 AM
Firstpage
1773
Lastpage
1775
Abstract
The authors examine the changes in wavelength and attenuation of long period fibre gratings subjected to bends with curvatures from 0 to 4.4 m-1. The wavelength change with curvature is nonlinear, with a projected minimum detectable curvature change of 2×10-3 m-1. The magnitude of the bend-induced wavelength shift depends on the rotation of the cylindrical fibre relative to the bending plane
Keywords
bending; diffraction gratings; fibre optic sensors; attenuation; curvature; long period fibre grating; structural bend sensing; wavelength shift;
fLanguage
English
Journal_Title
Electronics Letters
Publisher
iet
ISSN
0013-5194
Type
jour
DOI
10.1049/el:19981237
Filename
715382
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