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Field verification of 40G DPSK upgrade in a legacy 10G network

Optical Fiber Communication, IEEE (2010), NTuC2


We report verification of 1,200 km field upgrade of 10 G NRZ wavelengths with 40 G DPSK channels. Non symmetric dispersion map results in pronounced intra-channel nonlinear effect, which could be significantly reduced by dispersion pre-compensation

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