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Single-Photon Detector Based Long-Range Fibre-Optic Distributed Temperature Sensor

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Abstract

We present a long-range distributed temperature sensor based on Raman scattering in single-mode fibre. Using high-extinction pulses, standard telecom components and single-photon avalanche detectors, we demonstrate a 50km sensor with 3m resolution.

© 2012 Optical Society of America

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