Title :
Improvement of measurement accuracy of fibre Bragg grating sensor systems by use of gas absorption lines as multi-wavelength references
Author :
Chan, C.C. ; Jin, W. ; Ho, H.L. ; Wang, D.N. ; Wang, Y.
Author_Institution :
Dept. of Electr. Eng., Hong Kong Polytech., Kowloon, China
fDate :
6/7/2001 12:00:00 AM
Abstract :
The use of gas absorption lines as multi-wavelength references to enhance the measurement accuracy of fibre Bragg grating sensors is reported. Experiments with a three-FBG-sensor array interrogated by a tunable laser demonstrated an overall measurement accuracy of ~2 pm
Keywords :
Bragg gratings; fibre optic sensors; fibre Bragg grating sensor systems; gas absorption lines; measurement accuracy improvement; multi-wavelength references; tunable laser interrogation; wavelength detection resolution;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:20010206
