Please use this identifier to cite or link to this item: http://ktisis.cut.ac.cy/handle/10488/7325
Title: Gratings in novel fibre geometry for applications in shape sensing
Authors: Kalli, Kyriacos 
Dobb, Helen L. 
Allsop, Thomas D P 
Webb, David 
Keywords: Mathematical models
Optical fibers
Refractive index
Diffraction gratings
Issue Date: 2004
Publisher: Spie Digital Library
Source: Proceedings of SPIE - The International Society for Optical Engineering,2004, Volume 5459, Pages 109-117
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.
URI: http://ktisis.cut.ac.cy/handle/10488/7325
ISSN: 0277-786X
DOI: 10.1117/12.545070
Rights: © 2004 SPIE.
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