LONG-PERIOD FIBER GRATINGS FOR STRUCTURAL BEND SENSING

Authors
PATRICK HJ CHANG CC VOHRA ST
Citation
Hj. Patrick et al., LONG-PERIOD FIBER GRATINGS FOR STRUCTURAL BEND SENSING, Electronics Letters, 34(18), 1998, pp. 1773-1775
Citations number
9
Categorie Soggetti
Engineering, Eletrical & Electronic
Journal title
Electronics Letters → ACNP
ISSN journal
00135194
Volume
34
Issue
18
Year of publication
1998
Pages
1773 - 1775
Database
ISI
SICI code
0013-5194(1998)34:18<1773:LFGFSB>2.0.ZU;2-I
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 proje cted minimum detectable curvature change of 2 x 10(-3)m(-1). The magni tude of the bend-induced wavelength shift depends on the rotation of t he cylindrical fibre relative to the bending plane.