Experimental and theoretical studies on a distributed temperature sensor based on Brillouin scattering

Bao, X.; Dhliwayo, J.; Heron, N.; Webb, David J. and Jackson, David A. (1995). Experimental and theoretical studies on a distributed temperature sensor based on Brillouin scattering. Journal of lightwave technology, 13 (7), pp. 1340-1348.

Abstract

Results are reported from recent research on the use of the Brillouin gain/loss mechanism for distributed sensing. A theoretical model of the interaction of the pulsed and CW beams is described and compared with experiments. Results from a system with a 51 km sensing length are presented. We finally investigate issues related to the variation within the sensing fiber of the polarizations of the two beams.

Uncontrolled Keywords: acoustic scattering, acoustic waves, Brillouin scattering, frequency, optical fiber polarization, optical fibers, optical scattering, optical sensors, raman scattering, temperature sensors, Brillouin spectra, fibre optic sensors, optical fibre losses, optical fibre polarisation, spectral methods of temperature measurement, Brillouin gain, Brillouin loss mechanism, CW beams, beam polarisation, distributed sensing, distributed temperature sensor, pulsed beams, sensing fiber, sensing length
Published Date: 1995-07

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