Long Short-Term Memory Neural Network for Mitigating Transmission Impairments of 160 Gbit/s PAM4 Microring Modulation

We propose and design a Long-Short-Term-Memory (LSTM) algorithm to mitigate transmission impairments of 4-level-pulse-amplitude-modulation (PAM4) produced by silicon-microring-modulator (Si-MRM). 160-Gbit/s PAM4 over 1-km single-mode-fiber (SMF) is achieved satisfying the pre-forward-error-correction (FEC) requirement.