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We show that cross-phase modulation in coherent optical orthogonal frequency-division multiplexing (CO-OFDM) is mitigated with a simple intensity-dependent phase-modulation before the wavelength demultiplexer. A single low-bandwidth photodiode is used to estimate the optical power of all wavelength-division-multiplexing channels entering the receiver, and this determines a phase modulation applied...
An analytical approach to incorporate the cross-phase modulation (XPM) and self-phase modulation (SPM) to the calculation of system bit-error rate (BER) in a multispan intensity-modulation direct-detection (IM-DD) WDM system is presented in this paper. The effects of three important link parameters such as pump and probe power and span length, on the system performance have been investigated in terms...
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