Digital back-propagation in optical fiber communication systems considering equalization enhanced phase noise

Abstract

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Influence of equalization enhanced phase noise on digital nonlinearity compensation in Nyquist-spaced superchannel transmission systems

“…Yet, the influence of EEPN on the performance of superchannel transmission using multi-channel DBP (MC-DBP) has not been comprehensively investigated. Actually, EEPN can seriously degrade the performance of the schemes where significant CD has to be compensated over the entire superchannel bandwidth simultaneously, for example in the case of the fullfield DBP (FF-DBP) 20,21 . Consequently, it is of great significance to investigate the influence of EEPN on the MC-DBPbased nonlinear compensation in Nyquist-spaced superchannel transmission systems.…”