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Updated: Aug 17, 2026
High-speed Continuous-wave Stimulated Brillouin Scattering Spectrometer for Material Analysis
Published on: September 22, 2017
Simultaneous temperature and strain measurement with combined spontaneous Raman and Brillouin scattering
M N Alahbabi1, Y T Cho, T P Newson
1Optoelectronics Research Centre, University of Southampton, Southampton So17 1BJ, UK. mna@orc.soton.ac.uk
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.
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