Nokia and Orange build 1.5Tbps link over 870km cable

Orange and Nokia have achieved the world’s first optical transmission of 250Gbps per wavelength, over 870km through Orange Poland’s existing network.

Combining six carriers into a “superchannel” using 300GHz of bandwidth, the trial achieved speeds of 1.5Tbps transmitted over standard single-mode fibre.

Optical systems typically achieve maximum transmission capacity over short distances and lower capacity across long distances, the companies said.

This trial demonstrated how capacity and distance can be improved, resulting in a 250% increase in bandwidth over common 100Gbps networks using the same amount of spectrum.

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Nokia and Orange build 1.5Tbps link over 870km cable