Resonances in cross-phase modulation impairment in wavelength-division-multiplexed lightwave transmission

作者: L.E. Nelson , R.M. Jopson , A.H. Gnauck , A.R. Chraplyvy

DOI: 10.1109/68.769748

关键词: Zero-dispersion wavelengthCross-phase modulationOpticsDispersion-shifted fiberModulationPhysicsOptical modulation amplitudePhase modulationTransmission (telecommunications)Amplifier

摘要: Cross-phase modulation impairment resonances exist in wavelength-division-multiplexed lightwave systems when channels are spaced such that there occurs an integral number of bit walkthroughs per amplifier span. We have observed these transmission through 624-km standard single-mode fiber having span lengths 40, 80, or 120 km. Q measurements a 2.5-Gb/s five-channel system over 8/spl times/80 km with +7 dBm/channel predict on-resonance bit-error rates (BER's) several orders magnitude higher than off-resonance BER's.

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