Share Email Print
cover

Proceedings Paper

Opto-chemical fibre Bragg grating sensors based on evanescent field interaction with specific transducer layers
Author(s): Wolfgang Ecke; Kerstin Schroeder; Silvio Bierschenk; Reinhardt Willsch
Format Member Price Non-Member Price
PDF $14.40 $18.00

Paper Abstract

Fibre side-polishing technology allows for refractive index measurements using optical fibre Bragg grating sensors. Evanescent field interaction between the guided fibre light mode and the analyte near to the core of the side-polished optical fibre yields a Bragg wavelength shift in dependence on the refractive index of the analyte. This refractometric sensor technique has been extended to opto-chemical measurements with specific sensitivity using transducer layers with selective absorption properties deposited on the side-polished fibre core region. Experimental results are presented for the case of a hydrogen gas sensor (palladium transducer) and a pH sensor (polyaniline transducer).

Paper Details

Date Published: 24 September 2005
PDF: 8 pages
Proc. SPIE 5952, Optical Fibers: Applications, 59520G (24 September 2005); doi: 10.1117/12.623397
Show Author Affiliations
Wolfgang Ecke, Institute for Physical High-Technology (Germany)
Kerstin Schroeder, Institute for Physical High-Technology (Germany)
Silvio Bierschenk, Institute for Physical High-Technology (Germany)
Reinhardt Willsch, Institute for Physical High-Technology (Germany)


Published in SPIE Proceedings Vol. 5952:
Optical Fibers: Applications
Leszek R. Jaroszewicz; Brian Culshaw; Anna Grazia Mignani, Editor(s)

© SPIE. Terms of Use
Back to Top