Measurement Range Enhancement of Rayleigh-Based Optical Frequency Domain Reflectometry With Bidirectional Determination


We report a noble coherent optical frequency domain reflectometry (OFDR) system that simply enables measurement range enhancement up to full coherence length of a laser source. The proposed technique is based on bidirectional determination of Rayleigh backscattered signal along a fiber. To do this, complex OFDR signals are acquired with the help of $\pi / 2… (More)

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