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We show that the performance of phase-noise-compensated optical-frequency-domain reflectometry (PNC-OFDR) is affected by the acoustic phase noise caused by environmental acoustic perturbations applied to test fibers. When both the auxiliary interferometer and the fiber under test are insulated against acoustic perturbation, the theoretical spatial resolution is obtained. This means that a laser-induced...
We have developed a novel optical frequency domain reflectometry (OFDR) technique with a measurement range beyond the laser coherence length by using concatenatively generated reference signal from an auxiliary interferometer.
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