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Simultaneous temperature and strain measurement with combined spontaneous Raman and Brillouin scattering

By M.N. Alahbabi, Y.T. Cho and T.P. Newson

Abstract

We report on a novel method for simultaneous distributed measurement of temperature and strain based on spatially resolving both spontaneous Raman and Brillouin backscattered anti-Stokes signals. The magnitude of the intensity of the anti-Stokes Raman signal permits the determination of the temperature. The Brillouin frequency shift is dependent on both the temperature and the strain of the fiber; once the temperature has been determined from the Raman signal, the strain can then be computed from the frequency measurement of the Brillouin signal

Topics: QC, TK
Year: 2005
OAI identifier: oai:eprints.soton.ac.uk:21002
Provided by: e-Prints Soton
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