32-km distributed temperature sensor based on Brillouin loss in an optical fiber
- 15 September 1993
- journal article
- Published by Optica Publishing Group in Optics Letters
- Vol. 18 (18) , 1561-1563
- https://doi.org/10.1364/ol.18.001561
Abstract
We present a novel distributed temperature sensor that uses the temperature dependence of the frequency at which the loss is maximized in the interaction between a cw laser and a pulsed laser. With a 32-km sensing length, a temperature resolution of 1°C has been achieved; it is also shown that a spatial resolution of 5 m may be obtained.Keywords
This publication has 6 references indexed in Scilit:
- 22-km distributed temperature sensor using Brillouin gain in an optical fiberOptics Letters, 1993
- Distributed-temperature sensing using stimulated Brillouin scattering in optical silica fibersOptics Letters, 1990
- BOTDA-nondestructive measurement of single-mode optical fiber attenuation characteristics using Brillouin interaction: theoryJournal of Lightwave Technology, 1989
- Distributed temperature sensing in solid-core fibresElectronics Letters, 1985
- Distributed optical fibre Raman temperature sensor using a semiconductor light source and detectorElectronics Letters, 1985
- A distributed temperature sensor based on liquid-core optical fibersJournal of Lightwave Technology, 1983