Answers are grounded in this paper and cite their sources.
We experimentally demonstrate single-lane 112 Gb/s four-level pulse-amplitude modulation signal transmission over 80 km standard single-mode fiber (SSMF) by digital chromatic dispersion (CD) pre-management. By theoretically investigating the interplay between CD and self-phase modulation (SPM) during the SSMF transmission, we identify that the SPM induced impairment can be optically mitigated by the residual positive CD of the SSMF link. Thanks to the digital CD pre-management for the purpose of both CD compensation and nonlinear impairment mitigation, a simplified Volterra filter equalizer is good enough to achieve bit error rate below the 7% hard-decision forward error correcting threshold.
No takes yet. Share an insight, caveat, or question.
Fu et al. (2018) studied this question.
Synapse has enriched 10 related papers. Consider them for comparative context: