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Interferometry with Rayleigh backscattering in a single-mode optical fiber

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Abstract

A novel distributed sensing technique based on reflectometry is proposed. The technique uses the interference of the light waves backscattered within the resolution range of a reflectometer to detect the optical path changes in a single-mode fiber. Experimental results are presented, and practical realization of an intrusion detector that employs this technique is briefly discussed.

© 1994 Optical Society of America

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