Title :
Referencing technique for intensity-based sensors using fibre optic Bragg gratings
Author :
Cavaleiro, P.M. ; Ribeiro, A. B Lobo ; Santos, J.L.
Author_Institution :
Grupo de Optoelectronica, INESC, Porto, Portugal
fDate :
3/2/1995 12:00:00 AM
Abstract :
An all-optical fibre referencing scheme for intensity based sensors which uses two identical fibre Bragg gratings is described. It provides a general and simple miniature sensor design with referencing directiveness against system power fluctuations. The concept is demonstrated for a reflective-type displacement sensing cavity, and its potential for simultaneous measurand and temperature evaluation is evaluated
Keywords :
diffraction gratings; displacement measurement; fibre optic sensors; displacement sensing cavity; fibre optic Bragg gratings; intensity-based sensors; miniature sensor design; reflective-type;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19950244
