800-Gbps PAM-4 2-km Transmission using $4-\lambda$ LAN-WDM TOSA with MLSE based on Deep Neural Network

We propose an MLSE based on a deep neural network that estimates nonlinear channel responses. We demonstrate 224-Gbps/
$\lambda$
2-km transmission using
$4-\lambda$
LAN-WDM TOSA and the proposed method with a BER below the HD-FEC limit. © 2022 The Authors