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It is demonstrated that stimulated Brillouin scattering (SBS) occurring in the core of an optical fibre may be used in the construction of a distributed temperature sensor. Initial experiments with a length of fibre have shown that the sensitivity of the Stokes frequency to temperature is approximately 5.5MHz/°C and that different Stokes frequencies may be observed according to the temperature distribution along the fibre.
Culverhouse et al. (Thu,) studied this question.
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