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Proceedings Paper

Gratings in novel fibre geometry for applications in shape sensing
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Paper Abstract

A long period grating (LPG) fabricated in progressive three-layered (PTL) fibre is described. The grating with a period of 391μm, had dual attenuation bands associated with a particular cladding mode. The dual attenuation bands have been experimentally characterised for their spectral sensitivity to bending, which resulted in the highest sensitivity to bending seen for this particular fibre and temperature. The spectral characteristics of the fibre have been modelled giving good agreement to the experimental data as well as showing that the attenuation bands are both associated with the second order HE/EH2,n cladding mode.

Paper Details

Date Published: 1 September 2004
PDF: 9 pages
Proc. SPIE 5459, Optical Sensing, (1 September 2004); doi: 10.1117/12.545070
Show Author Affiliations
Helen Dobb, Aston Univ. (United Kingdom)
Thomas Allsop, Aston Univ. (United Kingdom)
David J. Webb, Aston Univ. (United Kingdom)
Kyriacos Kalli, Higher Technical Institute (Cyprus)


Published in SPIE Proceedings Vol. 5459:
Optical Sensing
Brian Culshaw; Anna Grazia Mignani; Rainer Riesenberg, Editor(s)

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