1,721,055 research outputs found

    Accurate measurement of in-band FWM power in DWDM systems over non-zero dispersion fibers

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    A novel accurate measurement technique of the in-band four-wave mixing (FWM) power in dense wavelength-division multiplexing (DWDM) over nonzero dispersion fibers is presented. By measuring only two out-of-band FWM terms generated by three fixed channels, the FWM efficiencies on all DWDM channels can be evaluated and the in-band signal-FWM crosstalk ratio can be calculated. A comparison with other known methods proves the better accuracy of the proposed technique

    Impulse Response Measurement of Balanced Chains of EDFAs in a Recirculating Loop

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    A simple method to measure the small-signal impulse response of balanced chains of both clamped and unclamped erbium-doped fiber amplifiers using a recirculating loop is presented, and the experimental results are checked against theory

    Measurement of Power Spread Histograms in Chains of EDFAs Fed by Multimedia Burst-Mode Packet Traffic

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    We experimentally domonstrate the effectiveness of gain clamping in the reduction of output power spread in chains of EDFAs fed by burst-mode WDM packetized traffic with highly variable interarrival times and burst durations, typical of multimedia communications
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