LSTM-DFE equalizer for 25 Gbit/s/λ IM/DD Super-PON

A long short-term memory-DFE equalizer for 25
$\mathbf{Gbit}/\mathbf{s}/\lambda$
IM/DD Super-PON is proposed. Simulation results show that a 7 dB sensitivity improvement is obtained, compared with long short-term memory and Volterra nonlinear equalizer.