22-km distributed temperature sensor using Brillouin gain in an optical fiber
- 1 April 1993
- journal article
- Published by Optica Publishing Group in Optics Letters
- Vol. 18 (7), 552-554
- https://doi.org/10.1364/ol.18.000552
Abstract
We describe an experimental distributed temperature sensor that uses the temperature dependence of the Brillouin frequency shift. When a 22.2-km sensing length is used, we have observed a temperature resolution of 1°C and have obtained a spatial resolution of 10 m.Keywords
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