80 km Fading Free Phase-Sensitive Reflectometry Based on Multi-Carrier NLFM Pulse Without Distributed Amplification
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DOI: 10.1109/jlt.2019.2919671
Abstract: Long range phase-sensitive optical time domain reflectometer (ϕ-OTDR) sensing mainly employs distributed amplification in the sensing fiber. It requires the light to be injected into both ends of the sensing fiber, which reduces the degree… read more here.
Keywords: distributed amplification; phase sensitive; range; amplification ... See more keywords