1 September 2004 Gratings in novel fibre geometry for applications in shape sensing
Author Affiliations +
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.
© (2004) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Helen Dobb, Helen Dobb, Thomas Allsop, Thomas Allsop, David J. Webb, David J. Webb, Kyriacos Kalli, Kyriacos Kalli, } "Gratings in novel fibre geometry for applications in shape sensing", Proc. SPIE 5459, Optical Sensing, (1 September 2004); doi: 10.1117/12.545070; https://doi.org/10.1117/12.545070

Back to Top