Title :
New micro-optic cell for optical fibre gas sensors with interferometric noise reduction
Author :
Morante, M.A. ; Stewart, George ; Culshaw, Brian ; Lopez-Higuera, Jose Miguel
Author_Institution :
Dept. of Electron. Technol. & Syst. Eng., Cantabria Univ., Santander
fDate :
7/31/1997 12:00:00 AM
Abstract :
A novel design of micro-optic cell employing inexpensive optics is demonstrated for reducing interferometric noise in optical fibre gas sensors. Compared with the traditional collimating cell, the insertion loss is significantly reduced and the overall signal-to-interferometric-noise ratio is improved by a factor of five in a methane sensor using second harmonic signal detection
Keywords :
fibre optic sensors; gas sensors; optical noise; optical signal detection; insertion loss; interferometric noise reduction; methane sensor; micro-optic cell; optical fibre gas sensors; second harmonic signal detection;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19970951
