Telia Carrier has deployed Coriant’s 400G-capable CloudWave Optics technology in its pan-European backbone network.

“As our customers in Europe experience increased demand for capacity to support their business-critical applications, we are committed to investing in best-in-class innovation to stay at the forefront of service excellence,” said Mattias Fridström, Chief Technology Officer, Telia Carrier. “The Coriant solution enables us to significantly improve utilization of our existing DWDM infrastructure and rapidly provision new services to meet our customers’ dynamic connectivity requirements.”
https://www.coriant.com/company/press-releases/Telia-Carrier-Deploys-Coriant-400G-capable.asp