Rakuten Mobile and Nokia demonstrate 1 Tbps single wavelength transmission

March 4, 2024
The trial in Asia Pacific achieved 1 Tbps transmission on a subsea and terrestrial hybrid optical line.

Rakuten Mobile and Nokia Corporation completed a 1 Tbps end-to-end transmission trial over a single wavelength on an 820km subsea and terrestrial hybrid optical line in Japan. 

The completion of the demonstration demonstrated capabilities to handle ultra-high-speed data transmission over significant distances.

Nokia's sixth-generation super-coherent Photonic Service Engine (PSE-6s) optics were used to transmit over a Nokia DWDM line system.

By using Nokia’s latest PSE coherent technology, Rakuten Mobile will increase spectrum efficiency and maximum capacity per fiber pair by what the vendor claims is 25% better than the earlier generation of coherent optics deployed in its network. 

Rakuten Mobile will also be able to scale network capacity while helping manage network power consumption by reducing power-per-bit by 50% compared to its prior generation of coherent optics.

“This technical milestone enables us to optimize the utilization of fiber capacity and enhance power efficiency, and the increased capacity empowers Rakuten Mobile to meet the demands of bandwidth-intensive mobile services and high-capacity enterprise requirements,” said Hiroshi Takeshita, Deputy CTO of Rakuten Mobile. “This accomplishment aligns with Rakuten Mobile’s network growth objectives.”

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