Full C-band 3317-km 12-Coupled-Core-Fiber Transmission with 266.2-Tbps Capacity Using Field-Installed Fiber-Optic Cable

We demonstrate 266.2-Tbps 3317-km full-C-band transmission using field-installed standard-cladding 12-coupled-core fiber cable. MDL impact is effectively suppressed to 0.2 dB per span by using per-core gain control of hybrid MC-EDFA and spatially diverse FEC coding.