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Proceedings Paper

Optical fiber humidity sensor based on surface plasmon resonance in the infra-red region
Author(s): M. Hernáez; C. R. Zamarreño; I. R. Matías; F. J. Arregui
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Paper Abstract

Here, the fabrication and characterization of a novel optical fiber humidity sensor based on surface plasmon resonance (SPR) in the infra-red region is presented. Firstly, an indium tin oxide (ITO) coating is deposited onto a 200 μm core diameter optical fiber causing the shift of the SPR wavelength to the infra-red region. Then, the LbL method is used to deposit a polymeric coating onto the ITO layer. The variations in the external humidity originated changes in the thickness and refractive index of the polymeric coating and hence in the resonance.

Paper Details

Date Published: 5 October 2009
PDF: 4 pages
Proc. SPIE 7503, 20th International Conference on Optical Fibre Sensors, 75030L (5 October 2009); doi: 10.1117/12.835291
Show Author Affiliations
M. Hernáez, Univ. Pública de Navarra (Spain)
C. R. Zamarreño, Univ. Pública de Navarra (Spain)
I. R. Matías, Univ. Pública de Navarra (Spain)
F. J. Arregui, Univ. Pública de Navarra (Spain)


Published in SPIE Proceedings Vol. 7503:
20th International Conference on Optical Fibre Sensors
Julian D. C. Jones, Editor(s)

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