Infinera, GlobalConnect complete successful 400G coherent transmission trial over 50 GHz infrastructure

Created December 10, 2019
Applications and Research

Infinera and GlobalConnect, an integrated digital infrastructure provider in Northern Europe, has announced the successful completion of a field trial demonstrating 400G coherent transmission over a 50 GHz fixed grid metro transport network concurrently with pre-existing 10G channels. The industry-first field trial showcased GlobalConnect’s ability to easily and cost-effectively scale its current optical transport network to meet growing capacity demands while preserving its investment in deployed infrastructure with optical technology from Infinera.

Conducted over a live GlobalConnect optical link in the Oslo metropolitan area, the field trial featured the latest coherent transmission capabilities of the Infinera Groove G30 Compact Modular Platform and seamless interoperability with deployed metro transport infrastructure. The error-free testing included multiple 300G and 400G alien wavelength transmission use cases over a live metro network link originally designed for and currently running 10G wavelengths using on-off keying (OOK) modulation technology. The field trial showcased the ability to boost the capacity of a 10G-engineered OOK-based network by going from 10G to 400G per wavelength, thus increasing the fibre capacity to 32 terabits on an existing 50 GHz fixed grid metro network.

“With the explosive growth in data traffic and acceleration of digital transformation, optical network flexibility and scalability remain critical to our ability to be responsive to our customers’ evolving communications needs,” said Anders Kuhn Saaby, CTO, GlobalConnect (pictured). “We remain committed to advancing our fibre infrastructure with cutting-edge technologies to keep pace with growing capacity demands and allow us to expand our addressable market.”

The Infinera Groove G30 is an open, disaggregated networking solution designed to be compatible with third-party optical line systems and diverse network environments, including conventional 10G-engineered non-coherent metro networks designed with OOK, a legacy transport technology that poses limitations for upgrading to higher-capacity wavelengths.

Following a merger with Broadnet, the GlobalConnect open fibre infrastructure spans over 42,000 kilometres and provides the foundation for a wide range of carrier-class services for wholesale and corporate customers.

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This article was written
by Peter Dykes

Peter Dykes is a independent telecoms and technology journalist who has over that last 30 years written for a wide range of B2B publications and companies. A former BT engineer, he specialises in networks and associated support systems. He is currently Editor of Optical Connections.