Geiger, H. and Dakin, J.P.
Low-cost high-resolution time-domain reflectometry for monitoring the range of reflective points
IEEE Journal of Lightwave Technology, 13, (7), . (doi:10.1109/50.400686).
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A new OTDR technique to interrogate the range of reflective markers in an optical fiber (or an electrical cable) is presented. The technique has been developed to monitor strain in sections of a fiber over gauge lengths of several meters. Signal-to-noise analysis shows that current OTDR systems do not fully exploit the spatial resolution theoretically available. The available resolution is explored with a new OTDR technique.
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