Highly sensitive optical hydrogen sensor usingcircularPd-coated singlemode tapered fibre
- 2 August 2001
- journal article
- Published by Institution of Engineering and Technology (IET) in Electronics Letters
- Vol. 37 (16) , 1011-1012
- https://doi.org/10.1049/el:20010716
Abstract
A novel optical hydrogen sensor, based on the absorption change of the evanescent fields in a circular Pd-coated singlemode tapered fibre is presented. The proposed sensor is polarisation independent and its sensitivity is adjustable by means of the taper diameter, interaction length, and/or light wavelength. A simple light transmission measurement setup is used to test the sensor. The sensor is suitable for the detection of low hydrogen concentrations with high sensitivity and fast time response. Transmission changes as high as 60% are demonstrated.Keywords
This publication has 3 references indexed in Scilit:
- Control of optical fibre taper shapeElectronics Letters, 1991
- Optical transmission and reflection of PdHxthin filmsJournal of Physics: Condensed Matter, 1989
- Hydrogen sensing with palladium-coated optical fibersJournal of Applied Physics, 1988