Electronics Letters · 2007 · 15 citations · 2 references
EngineeringCommunicationElectrical EngineeringDigital CommunicationOptoelectronicsPhotonicsFiber OpticsFiber-optic CommunicationOptical Communication SystemsOptical Fiber PropagationOptical FibersOptical Signal ProcessingChromatic Dispersion CompensationCoherent DetectionDispersion ManagementFiber Optic Communication SystemsGroup DelayLive SystemsOptical Transmission Systems
A simple and non-blocking polarisation-mode dispersion (PMD) monitoring technique using coherent detection is demonstrated and applied to a 40 Gbit/s live fibre-optic system. The results demonstrated a clear correlation between the instantaneous differential group delay and the receiver Q-margin. It was also demonstrated that PMD-induced outage can be eliminated by an adaptive PMD compensator.
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