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European Team Is Working On Low Power 1.6 TB/s Internet

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TERIPHIC project to make mass production-compatible 8-channel 800 Gb/s pluggable modules and 1.6 Tb/s 16-channel mid-board modules with at least 2 km reach

European scientists in the Horizon 2020 funded consortium TERIPHIC ( TERabit optical transceivers based on InP EML arrays and a Polymer Host platform for optical InterConnects) are using photonics to develop a low emission, 1.6 terabyte-per-second speed internet that will reduce power consumption by 50 percent per Gb/s.

Aiming to surpass current ‘gold' standards of 400GB per second, TERIPHIC transeiver modules are expected to cost €0.3 per Gigabyte per second.

The three year, €5.6 million TERIPHIC project will operate until December 2021 and has received a grant of €4.7 million from the European Commission via the Photonics PPP.

Photonic Integration

Panos Groumas from the TERIPHIC project coordination team, said: “Photonics is essential for the future of data centres. TERIPHIC intends to develop low-cost terabit optical transceivers through the automation of current photonic integration concepts and processes in commercial assembly machines.”

“While 400G is impressive, and was demonstrated in 2018, High-Performance Computing, Edge Computing, machine learning, end-user experiences will not run on existing speeds of 400 Gb/s."

“We are developing mass production compatible 800 Gb/s pluggable modules with eight lanes and 1.6 Tb/s mid-board modules with 16 lanes having at least 2 km reach," Groumas said.

“When the Gb/s power consumption is reduced, data centres will consume less power, and given that they are powered by power plants relying on various fuel sources including coal, we will see a significant reduction in carbon emissions.”

Project Leader, Hercules Avramopoulos said: “TERIPHIC will bring together EML arrays in the O-band, PD arrays and a polymer chip that will act as the host platform for the integration of the arrays and the wavelength mux-demux of the lanes.”

"The integration will rely on butt-end-coupling steps, which will be automated via the development of module-specific alignment and attachment processes on commercial equipment.

“The new transceiver design introduced by TERIPHIC will allow significant cost savings, due to assembly automation of both the transmitter and receiver optical subassembly (TOSA/ROSA) parts, and also at the packaging level, resulting in a cost of around €0.3 per Gb/s for the transceiver modules,” Avramopoulos said.

“TERIPHIC is an industrially driven project with specific and well-defined technical objectives. The technology that will be developed and delivered by the project is feasible due to the unique expertise that each one of the consortium partners brings to TERIPHIC.

“ICCS and Telecom Italia are responsible for providing the system specs, and together with Mellanox are responsible for the testing of the devices in both lab and real settings. Fraunhofer-HHI provides the photonic platform, the active components and is responsible for the hybrid integration of the latter with the photonic platform using ficonTEC machines.

“FiconTEC provides custom equipment for the automated assembly processes while III-V lab provides the high-speed electronic driver chips. Finally, Mellanox Technologies will take up the packaging of the transceivers,” said Avramopoulos.

The project is coordinated by the Photonics Communications Research Laboratory (PCRL) of the Institute of Communication and Computer Systems (ICCS) at NTU Athens, Greece.

The consortium comprises five additional partners from four European countries: Heinrich-Hertz Institute of Fraunhofer Gesellschaft Zur Foerderung der Angewandten Forschung e.v, ficonTEC Service GmbH (Germany); III-V Lab (France); Mellanox Technologies Ltd. Mlnx (Israel); Telecom Italia Spa (Italy).


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