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A full-duplex 60-GHz radio-over-fiber (RoF) system using novel optical local oscillating (LO) carrier distribution scheme to reduce the system cost and realize centralized management is proposed and experimentally demonstrated. In the proposed scheme, the optical LO carriers for producing remote electrical LO signals at the base stations (BSs) are generated together with the downlink RoF carriers...
We report that pump-noise induced FWM effects can be serious for some NZ-DSF fibres using distributed Raman amplification. Moreover, we find that such an effect strongly depends on the spectral structure of the pump, and can be suppressed by expanding the effective spectral width of the pump
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