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Infinera demonstrates PIC-based DTN system

Infinera

PIC-based DTN system

Infinera has concluded a demonstration in which Infinera's photonic integrated circuit (PIC)-based DTN system transmitted data over a 4,000km third-party subsea network.

With the Infinera DTN's 25GHz channel spacing, compared to 50GHz spacing on the pre-existing equipment, the Infinera system doubled the bandwidth capacity of the subsea network.

'The ability of the Infinera DTN to transmit data undersea for 4,000km, and over a foreign amplifier chain is a pathbreaking demonstration, which holds out the opportunity of a cost-effective way to increase capacity on subsea networks,' said Infinera's Steve Grubb.

Submarine optical networks include chains of subsea optical amplifiers, designed for the demands of operation on the ocean floor, and submarine line terminating equipment (SLTE), located in terrestrial landing stations and connected to either end of the amplifier chain.

In this demonstration, Infinera DTNs replaced the pre-existing SLTE systems and transmitted dense wave-division multiplexing (DWDM) optical signals across the pre-existing subsea amplifier chain.

The Infinera DTN is a digital RoadM for long-haul and metro core networks, combining high-capacity DWDM transport, integrated digital bandwidth management, and GMPLS-powered service intelligence in a single platform.

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