CART-based transmission equalization for 50 Gbit/s PAM4 over 25 km SSMFin10G-class IM/DD PON

摘要

Aiming at 10G-PON upgrading, we propose a machine learning equalization algorithm based on CART, which be of characteristics of nonlinear classification and regression. It is demonstrated that enhanced equalization performances are achieved for 50 Gbit/s PAM4 signal over 25 km SSMF in 10G-class IM/DD PON with 32.7 dB loss budget and the BER with CART equalizer is below 3.8e-3 at the receive power of -22.7 dBm.