20.8 Tb/s Transmission over 1200 km Using G654E Fibers, Hybrid Amplification and 400 Gb/s CFP2-DCO Interfaces. - Bruno Lavigne; Maël Le Monnier; Thierry Zami; Dirk Bode; Giuseppe A. Azzini; Roberto Peruta; Luca Suberini; Sergio Jovane; Oriol Bertran-Pardo; Amirhossein Ghazisaeidi (OFC, 2021)