ICXT Characterization in WC-MCFs and its Impact on the Performance of OOK-DD Systems
Alves , T. M. F.
ICXT Characterization in WC-MCFs and its Impact on the Performance of OOK-DD Systems, Proc 13th IEEE/IET International Symposium on Communication Systems, Networks and Digital Signal Processing CSNDSP, Porto, Portugal, Vol. , pp. - , July, 2022.
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An overview of some of our results on the intercore crosstalk (ICXT) induced in weakly-coupled multicore ﬁber (WC-MCF) systems is presented. The random evolution of the ICXT
over time observed experimentally in WC-MCFs is characterized and the correlation between the ICXT ﬁeld components induced by multiple interfering cores is investigated. The impact of the ICXT on the outage probability of on-off keying direct-detection WC-MCF systems, with |skew×bit rate | ≪ 1 and |skew×bit rate | ≫ 1, is assessed as well. It is shown that the ICXT power
induced by multiple interfering cores is adequately modelled by a χ2 distribution with four degrees of freedom. This means that the ICXT Gaussian ﬁeld components are ncorrelated or weakly correlated. The measurements of the system performance show that, for the same outage probability, systems with |skew×bit rate | ≫ 1 present an additional ICXT tolerance of about 3 dB compared with systems with |skew×bit rate | ≪ 1.