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Proceedings Paper

Nanorefractometer based on deposition of an overlay on a long period fiber grating
Author(s): Ignacio Del Villar; Ignacio R. Matias; Francisco J. Arregui
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Paper Abstract

The deposition of an overlay of higher refractive index than the cladding in a Long Period Fiber Grating (LPFG) permits to improve the sensitivity to ambient refractive index changes in a great manner. The question is to obtain an optimum thickness value for the overlay. The problem is analysed with a numerical method based on LP mode approximation and coupled mode theory. Design rules are given for obtaining optimum sensitivity for specific ambient refractive index ranges.

Paper Details

Date Published: 23 May 2005
PDF: 4 pages
Proc. SPIE 5855, 17th International Conference on Optical Fibre Sensors, (23 May 2005); doi: 10.1117/12.624262
Show Author Affiliations
Ignacio Del Villar, Univ. Publica de Navarra (Spain)
Ignacio R. Matias, Univ. Publica de Navarra (Spain)
Francisco J. Arregui, Univ. Publica de Navarra (Spain)


Published in SPIE Proceedings Vol. 5855:
17th International Conference on Optical Fibre Sensors
Marc Voet; Reinhardt Willsch; Wolfgang Ecke; Julian Jones; Brian Culshaw, Editor(s)

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