Electronics Letters · 1997 · 42 citations · 4 references
EngineeringElectrical EngineeringPhysicsOpticsOptoelectronicsPhotonicsFiber OpticsFrequency ResponseNonlinear OpticsOptical Communication SystemsOptical FibersOptical Signal ProcessingNonlinearityOptical Nonlinearity CompensationResolutionsSpatial Resolution Measurement
The authors demonstrate long-range coherent optical frequency domain reflectometry (C-OFDR) with an auxiliary feedback-control circuit to linearise frequency sweep. They successfully suppress the sweep nonlinearity, and achieve spatial resolutions of 14 cm and 50 m, respectively, at the far ends of 1 and 30 km optical fibres.
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