OTE Group Achieves Two New Optical Transmission Rates Over Long Distances

Greek telecommunications company OTE Group, a member of Deutsche Telekom (DT), announced this week that it has achieved two new optical transmission rate records using Nokia’s sixth-generation super-coherent Photonic Service Engine (PSE-6s). In a field trial conducted over OTE Group’s DWDM network in Greece, Nokia and OTE claimed records by transmitting 800 Gbps on a single channel over 2,580 km and 900 Gbps over 1,290 km. The companies also demonstrated 1.2 Tbps transmission on a single channel over a 255 km distance.

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Also Read: NEC and NTT Successfully Test Long-Distance, High-Capacity Multicore Fiber Transmission

Details of the Field Trial

The field trial took place on OTE Group’s national dense wavelength division multiplexing network, connecting IP Core data centers and routers in Greece. Two optical nodes were installed in Patra and Athens to enhance performance over specific fiber optic routes, according to the official release.

Nokia’s Optical Transport Solution

The trial utilised Nokia’s optical transport solution, which reportedly improved network performance by optimizing spectrum utilisation and reducing energy consumption per bit by 40 percent. This development is said to lower the network’s carbon footprint.

Also Read: Megacable Achieves 1.1 Tbps Long-Distance Optical Transmission Record

Vision for Advanced Network Performance

OTE Group said: “We are proud to have developed, constructed, and operate one of the most advanced long-haul backbone DWDM networks globally. This network has demonstrated world-record performances, as evidenced by our recent field trial. Our aim is to deliver top-tier performance in the most cost-effective manner.”