NO2 optical fiber sensor based on TFBG coated with LuPc2

Author

Bueno, A. ; Debliquy, M. ; Lahem, D. ; Van Baekel, A. ; Megret, P. ; Caucheteur, C.

Author_Institution

Service d´Electromagn. et de Telecommun., Univ. de Mons, Mons, Belgium

fYear

2014

fDate

2-5 Nov. 2014

Firstpage

1073

Lastpage

1076

Abstract

We present an optical fiber sensor based on a tilted fiber Bragg grating (TFBG) coated with lutetium bisphthalocyanines (LuPc₂) for nitrogen dioxide (NO₂) measurement. The measurand is encoded in the peak-to-peak amplitude of the cladding resonances since they are modified with the gas presence. A specifically developed peak/valley detection algorithm was used for the gas monitoring. Ultra-violet (UV) illumination of the coating is needed in order to recover the sensitive material to its original state after NO₂ exposure. The sensor responds properly to several cycles in presence and in absence of NO₂.

Keywords

Bragg gratings; fibre optic sensors; gas sensors; lutetium compounds; nitrogen compounds; NO₂; cladding resonances; lutetium bisphthalocyanines; nitrogen dioxide measurement; optical fiber sensor; tilted fiber Bragg grating; ultraviolet illumination; Coatings; Lighting; Optical fiber sensors; Optical fibers; Refractive index; LuPc2; NO2 sensor; TFBG; UV illumination; optical fiber sensor; peak detection algorithm;

fLanguage

English

Publisher

ieee

Conference_Titel

SENSORS, 2014 IEEE

Conference_Location

Valencia

Type

conf

DOI

10.1109/ICSENS.2014.6985190

Filename

6985190