The Chinese vendor says it has “completed data signaling at speeds of 400 Gbit/s over a distance of more than 5,000 kilometers” using a WDM system with 100GHz channel spacing and a “unique frequency algorithm to overcome the issue of signal degradation,” which is significant in long-distance transmissions.
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Closing the gap to improve the capacity of existing fiber optic networks
The research team, which included Professor Arthur Lowery and Dr Liang Du of the Monash Department of Electrical and Computer Systems Engineering and Jochen Schroeder, Joel Carpenter and Ben Eggleton from the University of Sydney, managed to transmit a signal of 10 terabits per second (Tb/s) more than 850 km (528 miles) using the new technology.
via Closing the gap to improve the capacity of existing fiber optic networks.