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Proceedings Paper

Experimental investigation of long period grating working in transition mode
Author(s): Luis Melo; Geoff Burton; Stephen Warwick; Peter Wild
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Paper Abstract

An experimental investigation of the transition modes of long period gratings (LPG) is reported. Coating LPGs with a material of high refractive index causes a reorganization of the cladding modes, leading to a substantial increase in sensitivity to changes in the surrounding refractive index (SRI). The thickness of polystyrene coatings on optical fibers, applied by dip-coating, was measured by scanning electron microscopy. The maximum sensitivity and corresponding SRI of each coating thickness was then determined by analyzing the attenuation bands in the transmission spectrum.

Paper Details

Date Published: 2 June 2014
PDF: 4 pages
Proc. SPIE 9157, 23rd International Conference on Optical Fibre Sensors, 915750 (2 June 2014); doi: 10.1117/12.2059464
Show Author Affiliations
Luis Melo, Univ. of Victoria (Canada)
Geoff Burton, Univ. of Victoria (Canada)
Stephen Warwick, Univ. of Victoria (Canada)
Peter Wild, Univ. of Victoria (Canada)


Published in SPIE Proceedings Vol. 9157:
23rd International Conference on Optical Fibre Sensors
José M. López-Higuera; Julian D. C. Jones; Manuel López-Amo; José Luis Santos, Editor(s)

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