Abstract: The optical time-domain reflectometer (OTDR) is a primary test and measurement instrument for detecting, localizing, and qualifying various fiber optic link events induced by breaks, splices ...
Abstract: In this paper, a frequency-scanned Φ-OTDR based on a frequency shifting loop (FSL) is proposed. The FSL is a fiber optic loop containing an acousto-optic frequency shifter (AOFS) and a fiber ...
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