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Long-Term Monitoring of Local Temperature and Stress Changes in a Buried Fiber-Optic Cable Using a BOTDA

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Abstract

We present the initial results from a continuing long-term field measurement of the local Brillouin spectra in a fiber in a 70-km buried cable using a BOTDA. The use of these results to estimate local temperature and stress changes in the fiber is discussed.

© 2010 Optical Society of America

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