Review of the Discrete Changes Model of Intercore Crosstalk in Weakly-Coupled Multicore Fibers

We review the discrete changes model (DCM) of intercore crosstalk (ICXT) in weakly-coupled multicore fiber systems. The stochastic time evolution, decorrelation bandwidth and polarization fluctuations over time of the ICXT are analysed numerically and experimentally. The DCM limitations and advantages are highlighted.