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|Title:||Gratings in novel fibre geometry for applications in shape sensing||Authors:||Kalli, Kyriacos
Dobb, Helen L.
Allsop, Thomas D P
|Keywords:||Mathematical models;Optical fibers;Refractive index;Diffraction gratings||Category:||Electrical Engineering - Electronic Engineering - Information Engineering||Field:||Engineering and Technology||Issue Date:||Apr-2004||Publisher:||Spie Digital Library||Source:||Proceedings of SPIE - The International Society for Optical Engineering,2004, vol. 5459, pp. 109-117; Optical Sensing; Strasbourg; France; 27 April 2004 through 29 April 2004||Journal:||Proceedings of SPIE - The International Society for Optical Engineering||Conference:||Optical Sensing||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.||ISSN:||0277-786X||DOI:||10.1117/12.545070||Rights:||© 2004 SPIE.||Type:||Conference Papers|
|Appears in Collections:||Άρθρα/Articles|
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