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Proceedings Paper

Lossy-mode resonance-based refractometers by means of indium oxide coatings fabricated onto optical fibers
Author(s): C. R. Zamarreño; I. Del Villar; P. Sanchez; M. Hernaez; C. Fernandez; I. R. Matias; F. J. Arregui
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Paper Abstract

In this work, lossy mode resonance (LMR) based optical fiber refractometers are fabricated by using a transparent coating (indium oxide), as the LMR supporting layer. The utilization of indium oxide coatings permits the fabrication of highly sensitive optical fiber refractometers and enables the tunability of the LMR by adjusting the fabrication parameters, such as the coating thickness. The detection technique is based on the wavelength shift of the LMR. In this work it has been studied the influence of the external refractive index, achieving a maximum sensitivity of 2.24e-4 refractive index units per nanometer. Moreover, by adequated parameterization, more than one LMR can be observed in the wavelength range analyzed in the experiments, which leads to a more accurate measurement of the refractive index.

Paper Details

Date Published: 8 September 2010
PDF: 4 pages
Proc. SPIE 7653, Fourth European Workshop on Optical Fibre Sensors, 76531W (8 September 2010); doi: 10.1117/12.866271
Show Author Affiliations
C. R. Zamarreño, Univ. Pública de Navarra (Spain)
I. Del Villar, Univ. Pública de Navarra (Spain)
P. Sanchez, Univ. Pública de Navarra (Spain)
M. Hernaez, Univ. Pública de Navarra (Spain)
C. Fernandez, Univ. Pública de Navarra (Spain)
I. R. Matias, Univ. Pública de Navarra (Spain)
F. J. Arregui, Univ. Pública de Navarra (Spain)

Published in SPIE Proceedings Vol. 7653:
Fourth European Workshop on Optical Fibre Sensors
José Luís Santos; Brian Culshaw; José Miguel López-Higuera; William N. MacPherson, Editor(s)

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