Title :
Performance limit of fibre-optic gas sensors from coherent backscatter
Author :
Jin, W. ; Demokan, M.S. ; Stewart, G. ; Philp, W. ; Culshaw, B.
Author_Institution :
Dept. of Electr. Eng., Hong Kong Polytech. Univ., Kowloon, Hong Kong
fDate :
6/1/1998 12:00:00 AM
Abstract :
Backscatter noise in fibre-optic gas sensors is investigated. Interference between the signal waves and backscattered waves causes signal fluctuation in the output, which limits the performance of the sensing system. Sensor resolutions limited by backscatter noise are calculated for both reflection and transmission type sensors
Keywords :
backscatter; fibre optic sensors; gas sensors; light coherence; light interference; light scattering; optical noise; optical resolving power; reflectivity; backscatter noise; backscattered waves; coherent backscatter; fibre-optic gas sensor performance limit; light interference; reflection type sensors; sensing system; sensor resolutions; signal fluctuation; signal waves; transmission type sensors;
Journal_Title :
Optoelectronics, IEE Proceedings -
DOI :
10.1049/ip-opt:19981892
