Gratings in novel fibre geometry for applications in shape sensing

Helen Dobb; Thomas Allsop; David J. Webb; Kyriacos Kalli

doi:10.1117/12.545070

1 September 2004 Gratings in novel fibre geometry for applications in shape sensing

Helen Dobb, Thomas Allsop, David J. Webb, Kyriacos Kalli

Proceedings Volume 5459, Optical Sensing; (2004) https://doi.org/10.1117/12.545070
Event: Photonics Europe, 2004, Strasbourg, France

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/EH_2,n cladding mode.

Citation Download Citation

Helen Dobb, Thomas Allsop, David J. Webb, and Kyriacos Kalli "Gratings in novel fibre geometry for applications in shape sensing", Proc. SPIE 5459, Optical Sensing, (1 September 2004); https://doi.org/10.1117/12.545070

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