UNLOC and Xtera set a new optical transmission record

Xtera®, a provider of innovative subsea fibre optic technology,  have demonstrated a transmission 120 Terabit/s over a single repeatered fibre. The experiment, which was performed in collaboration with UNLOC researchers in UCL, used a hybrid distributed-Raman / EDFA amplifier with a bandwidth of 91 nm. This is an extension of the technology which Xtera currently deploys in its subsea repeaters, with 256QAM and adaptive FEC expertise coming from UCL and fibre from Sumitomo.