400GBASE-LR4 Transmission Over Field-Deployed Fibre Link Supported by Bismuth-Doped Fibre Amplifier.
Yuta WakayamaVitaly MikhailovDaniel J. ElsonRachata ManeekutJiawei LuoCen WangFilippos BalasisNoboru YoshikaneDaryl InnissTakehiro TsuritaniPublished in: ECOC (2021)