Innovative fiber optic sensor for hydrogen detection

Conference paper (2012)

Authors

Nicolas Javahiraly University of Strasbourg
C.P.F. Perrotton University of Strasbourg
M.J. Slaman ChemE/Materials for Energy Conversion and Storage - AS
B. Dam ChemE/Chemical Engineering
Patrick Meyrueis University of Strasbourg
Department
ChemE/Chemical Engineering
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Published Date

2012

Language

English

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Department

ChemE/Chemical Engineering

Abstract

A new design of a fiber optic sensor using Palladium as a sensitive layer is presented. In this new configuration, a transducer layer is deposited on a multimode fiber (without the optical cladding). The transducer layer is a multilayer stack based on a silver, a silica and a Pd layer. The spectral modulation of the light transmitted by the fiber allows to detect hydrogen. The sensor is only sensitive to the Transverse Magnetic polarized light and the Transverse Electric polarized light can be used as a reference signal. The multilayer thickness defines the sensor performance. The Silica thickness tunes the resonant wavelength, whereas the silver and Pd thickness determines the sensor sensitivity. We present some results obtained for different multilayer Pd configurations.