Interchannel Nonlinear Impairment Compensation By Advanced Split-Step Method

摘要

Interchannel nonlinear impairments are one of the major limitations to the channel capacity and transmission distance in WDM systems. It is shown that nonlinear impairments arising from cross-phase modulation between two independent WDM channels can be compensated. Advanced digital back propagation algorithms based on advanced split step method allow for compensating inter-channel nonlinear impairments with low complexity. With the new algorithm, the complexity of compensating inter-channel impairments is comparable to the complexity required for intra-channel impairments.