Nokia Bell Labs: new 800 Gb/s world record for transoceanic optical transmission
The new optical speed record for transoceanic distances is now 800 Gbps on a single optical wavelength at 7865 km - twice as much as what current state-of-the-art equipment can transmit at the same capacity. A second record, achieved with subsidiary Alcatel Submarine Networks, established 41 Tb/s net throughput over 291 km via a C-band unrepeated transmission system.
C-band unrepeated systems are commonly used to connect islands and offshore platforms to each other and the mainland. The previous record for such systems over the same distance is 35 Tb/s. According to Nokia, the research behind these records will have “significant impact on the next generation of submarine optical transmission systems”.