NEC approaches Shannon limit with 34.9 Tbps over 6,300 km
NEC Corp. (NEC; TSE: 6701) says it has transmitted 34.9 Tbps on a single fiber over more than 6,300 km. The demonstration achieved 8.3 bps/Hz in the C-Band, which the company asserts is a 16.9% improvement over the previous record for spectral efficiency of a transoceanic transmission.