Title :
Novel mid-infrared LED as a source for optical fibre gas sensing
Author :
McCabe, S. ; MacCraith, B.D.
Author_Institution :
Sch. of Phys. Sci., Dublin City Univ., Ireland
Abstract :
A mid-infrared LED emitting at 3.36 mu m (FWHM 400 nm) is used as a source for evanescent wave flammable gas sensing with fluoride fibre. The system described has a detection limit for propane of 1.5%. These preliminary data demonstrate the potential for distributed gas sensing using novel LED sources.
Keywords :
fibre optic sensors; gas sensors; light emitting diodes; 3.36 micron; detection limit; evanescent wave flammable gas sensing; fluoride fibre; mid-infrared LED; optical fibre gas sensing;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19931143
