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Proceedings Paper

Optimization of fibre Bragg refractometer sensor parameters for bio-chemical applications
Author(s): A. Karar; M. F. Grobler; Johan Meyer
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Paper Abstract

In this work, we have demonstrated a dual fibre Bragg grating (FBG) sensor for a temperature-insensitive chemical concentration or refractive index sensor by etching the cladding of one of the FBGs. The dual FBG sensor was used to measure different solution concentrations of glycerol in water. The sensor showed sensitivities of 2.13×10-3 and 2.28×10-3 at 85% and 0% (pure water) glycerol solution concentrations, respectively. The dual FBG sensors demonstrate that it can be used to detect chemical or biological changes in the surrounding media by measuring the Bragg wavelength and reflectivity differences between the dual FBG’s reflection spectrum peaks.

Paper Details

Date Published: 3 February 2017
PDF: 6 pages
Proc. SPIE 10036, Fourth Conference on Sensors, MEMS, and Electro-Optic Systems, 100360E (3 February 2017); doi: 10.1117/12.2245569
Show Author Affiliations
A. Karar, Univ. of Johannesburg (South Africa)
Nile College (Sudan)
M. F. Grobler, Univ. of Johannesburg (South Africa)
Johan Meyer, Univ. of Johannesburg (South Africa)

Published in SPIE Proceedings Vol. 10036:
Fourth Conference on Sensors, MEMS, and Electro-Optic Systems
Monuko du Plessis, Editor(s)

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