We report a novel technique to separate Brillouin and Rayleigh scattered light in order to generate the Landau-Placzek ratio required for distributed temperature sensing.
References
1.
WaitP. C.NewsonT. P., Optics Communications, 1996, Vol 122, pp 141–146, “Landau-Placzek ratio applied to distributed fibre sensing”.
2.
De SouzaK.LeesG. P.WaitP. C.NewsonT. P., Electronics Letters, 1996, Vol 32, No 23, pp 2174–2175, “Diode-pumped Landau-Placzek based distributed temperature sensor utilising an all-fibre Mach-Zehnder interferometer”.
3.
LeesG.P.WaitP.C.ColeM.J.NewsonT.P., IEEE Photonics Technology Letters, 1998, Vol 10, No 1, pp 126–128, “Advances in optical fiber distributed temperature sensing using the Landau-Placzek ratio”.
4.
LecoeucheV.WebbD. J.PannellC. N.JacksonD. A., Optical Fiber Sensors, 1999, Kyongju, Korea, 12–16th April 1999, SPIE Vol 3746, pp 349–352, “16 km distributed temperature sensor based on coherent detection of spontaneous Brillouin scattering”.
5.
CanningJ.SceatsM. G., Electronics Letters, 1994, Vol 30, No 16, pp 1344–1345, “box-phase-shifted periodic distributed structures in optical fibres by UV post-processing”.
6.
WoodT. H.LinkeR. A.KasperB. L.CarrE. C., Journal of Lightwave Technology, 1988, Vol 6, No 2, pp 346–352, “Observation of Coherent Rayleigh Noise in Single-Source Bidirectional Optical Fiber Systems”.
