Title :
Diode-pumped Landau-Placzek based distributed temperature sensor utilising an all-fibre Mach-Zehnder interferometer
Author :
De Souza, K. ; Lees, G.P. ; Wait, P.C. ; Newson, T.P.
Author_Institution :
Optoelectron. Res. Centre, Southampton Univ., UK
fDate :
11/7/1996 12:00:00 AM
Abstract :
A Mach-Zehnder interferometer has been used for the first time in the detection system of a distributed temperature sensor, based on the Landau-Placzek ratio method. The interferometer separates the back-scattered Rayleigh and Brillouin signals with very low losses. Used together with a novel diode-pumped Q-switched fibre laser source, performance has been improved at a substantial cost saving over previously reported work
Keywords :
Brillouin spectra; Mach-Zehnder interferometers; Rayleigh scattering; fibre lasers; fibre optic sensors; optical pumping; temperature sensors; Landau-Placzek ratio method; all-fibre Mach-Zehnder interferometer; back-scattered Brillouin signals; back-scattered Rayleigh signals; diode-pumped Q-switched fibre laser source; distributed temperature sensor;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19961424
