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Proceedings Paper

Humidity sensor fabricated by deposition of SnO2 layers onto optical fibers
Author(s): P. Sanchez; C. R. Zamarreño; M. Hernaez; I. del Villar; I. R. Matias; F. J. Arregui
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Paper Abstract

In this work, the fabrication and characterization of novel humidity sensors based on Lossy Mode Resonances (LMR) is presented. Tin oxide (SnO2) coatings fabricated onto optical fibers are used as LMR supporting coatings. The SnO2 based refractometers showed an average sensitivity of 6715 nm/refractive index unit (RIU) in the range 1.333–1.420 RIU. The behavior of this optical fiber device as relative humidity (RH) sensor was also tested, monitoring its response to different surrounding humidity levels. The results show a sensitivity of 0.1 nm/RH% in the range from 20% to 80% RH.

Paper Details

Date Published: 20 May 2013
PDF: 4 pages
Proc. SPIE 8794, Fifth European Workshop on Optical Fibre Sensors, 87940C (20 May 2013); doi: 10.1117/12.2026091
Show Author Affiliations
P. Sanchez, Public Univ. of Navarra (Spain)
C. R. Zamarreño, Public Univ. of Navarra (Spain)
M. Hernaez, Public Univ. of Navarra (Spain)
I. del Villar, Public Univ. of Navarra (Spain)
I. R. Matias, Public Univ. of Navarra (Spain)
F. J. Arregui, Public Univ. of Navarra (Spain)

Published in SPIE Proceedings Vol. 8794:
Fifth European Workshop on Optical Fibre Sensors
Leszek R. Jaroszewicz, Editor(s)

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