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Optics Letters

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  • Vol. 30, Iss. 11 — Jun. 1, 2005
  • pp: 1276–1278

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

M. N. Alahbabi, Y. T. Cho, and T. P. Newson  »View Author Affiliations


Optics Letters, Vol. 30, Issue 11, pp. 1276-1278 (2005)
http://dx.doi.org/10.1364/OL.30.001276


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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.

© 2005 Optical Society of America

OCIS Codes
(060.2370) Fiber optics and optical communications : Fiber optics sensors
(290.1350) Scattering : Backscattering
(290.5830) Scattering : Scattering, Brillouin
(290.5860) Scattering : Scattering, Raman

Citation
M. N. Alahbabi, Y. T. Cho, and T. P. Newson, "Simultaneous temperature and strain measurement with combined spontaneous Raman and Brillouin scattering," Opt. Lett. 30, 1276-1278 (2005)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-30-11-1276


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