Nokia hits record single carrier bit rate of 1.52 Tbps over 80 km

Researchers at Nokia Bell Labs achieved a world record for the highest single carrier bit rate at 1.52 Terabits per second (Tbps) over 80 km of standard single mode fiber. Marcus Weldon, Nokia CTO and President of Nokia Bell Labs, said: “It has been fifty years since the inventions of the low-loss fiber and the associated optics. From the original 45 Megabit-per-second systems to more than 1 Terabit-per-second systems of today – a more than 20,000-fold...

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Google's Dunant transatlantic cable makes landfall in France

Google’s transatlantic Dunant cable has landed in Saint-Hilaire-de-Riez, in the Vendée region of France. The terrestrial stage of the laying of this cable is proceeding. As the “Landing Party” and owner of the French part of the cable, Orange has completely refurbished the historic station in Saint-Hilaire-de-Riez, which was no longer in use, to house the terminal equipment for the Dunant system. This area is a strategic location, close to the main...

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Marvell samples dual 400GbE PHY

Marvell has begun sampling a dual 400GbE (Gigabit Ethernet) PHY transceiver with 100GbE serial electrical I/O capabilities. It enables interfacing between the current generation of switch ASICs with the next generation of optics and vice versa by supporting translation between 50G PAM4 and 100G PAM4 based implementations of 400GbE, 200GbE and 100GbE. Marvell said its new dual 400GbE MACsec PHY (88X9121P) device with 100G serial I/Os enables the...

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OFC 2020: 90% of technical presentations delivered

Despite travel restriction arising from the COVID-19 crisis, the organizers of this year's OFC 2020 Conference and Exhibition, which was held last week in San Diego, said more than 90 percent of the event's 700+ technical presentations were delivered either in-person or by virtual presence. Through live-streaming and two-way remote participation, technical registrants unable to travel to San Diego remained an integral part of the event. The new...

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