IEEE Photonics Technology Letters · 2011 · 27 citations · 10 references
EngineeringElectrical EngineeringAnalog ElectronicsDigital CommunicationPhotonicsFiber OpticsFiber-optic CommunicationOptical AmplifiersOptical Communication SystemsOptical FibersSignal AmplificationBit Error RateBit-error Rate AnalysisDifferential Phase ShiftOptical AmplificationOptical Parametric AmplificationOptical RegenerationOptical Signal AmplificationReceiver Sensitivity
We demonstrate, for the first time to our knowledge, regeneration of a 42.66-Gb/s differential phase-shift keyed signal using a dual-pump nondegenerate four-wave-mixing-based fiber-optic parametric amplifier. The regenerative performance of the subsystem is characterized in terms of bit-error rate against narrowband and wideband introduced noise. While a strong receiver sensitivity improvement, up to 20 dB, is noticed against narrowband noise, against quasi-random (wideband) noise we observe a regeneration of 2.7 dB.
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