APPLICATIONS & RESEARCH
SK Telecom selects Coriant 100G submarine system for undersea link
Coriant recently announced that SK Telecom, Korea’s largest telecommunications company, has selected its submarine solution to extend 100G connectivity to Ulleungdo Island off Korea. The solution, based on the Coriant hiT 7300 Multi- Haul Transport Platform and Transport Network Management System, will enable SK Telecom to enhance delivery of mobile broadband services on the island, which lies off the east coast of the country. To support growing demand for high-bandwidth end-user services and applications, SK Telecom is increasing long haul DWDM capacity to the island using the established Coriant technology deployed in its nationwide terrestrial DCM-free 100G network. Coriant’s unrepeatered submarine network solution will support resilient, low latency 100G coherent optical Telia Carrier builds new route from Stockholm to St. Petersburg Telia Carrier has established a new route stretching from Stockholm to St. Petersburg via Tallinn, and has upgraded multiple submarine cables to future proof its network, bringing lower latency and additional capacity. The new route further diversifies the wholesale carrier’s network and the upgrade
With fast and efficient resiliency options, the hiT 7300 is said to delivers optimised optical reach and performance in diverse transmission applications,
even under the most challenging fibre optic conditions.
Coriant’s hiT 7300 multi-haul transport platform and transport network management system.
As SK Telecom extends its network and 100G service reach to Ulleungdo Island, Coriant TNMS will enable operations staff to seamlessly manage high-quality services across terrestrial and subsea network segments, while accelerating time-to-revenue with end-to-end point-and- click provisioning and full service visibility and control. TNMS supports automation capabilities designed to minimise OpEx and perform routine network tasks including inventory management, network element configuration backup, and software upgrades. build out eastward to stay ahead of content demand and the resulting backbone traffic in the region,” said Johan Godal, global product manager, wavelength and network outsourcing services at Telia Carrier. “By extending the route from Sweden to Russia and upgrading the submarine cables in the Baltic Sea, we can now offer high capacity and low latency services via a highly-meshed network throughout the region.” As St. Petersburg and Moscow are important transit points for Asian traffic, the new route also allows Telia Carrier to service the increase in traffic coming into Europe from Asia via terrestrial cable routes from the East as well as directly from Russia.
amplification.” Proven in the most
transmission over a distance of more than 250km. “Quality is critical in today’s transport networks as they scale to support ever-increasing amounts of customer traffic,” said Petri Markkanen, General Manager and VP Sales, Asia Pacific, Coriant. “Following rigorous testing for this submarine application, SK Telecom selected the Coriant hiT 7300 submarine solution for its 100G reach and performance, and features including flexible configuration, advanced optical link control, and integrated Raman
demanding Tier 1 photonic mesh networks around the world, the hiT 7300 is an industry-leading coherent optical communications system that supports the secure and reliable transmission of 100G+ per channel. The hiT 7300 achieves a total system capacity of up to 9.6 Tbps per fibre pair via 96 x 100G channels, and is designed to support up to 25.6 Tbps when using advanced flexi-rate, flexi-grid, and super-channel capabilities powered by Coriant CloudWave optics.
Stockholm calling: Now linked under the Baltic sea to Tallinn and St Petersburg.
including Riga, Latvia or Helsinki, Finland. The subsea cables reaching across the Baltic Sea have been upgraded using the latest coherent Flex-Grid technology allowing Telia Carrier to offer 100G, and future 150G and 200G services leveraging the latest modulation formats. “As our network becomes more meshed throughout Eastern Europe and the Baltics, we are continuing to
enables Telia Carrier to provide 100G+ services to carriers, content and cloud providers in the Baltics, Russia and beyond. The new network extension is the most direct route possible from Stockholm to St. Petersburg at just under 900 km. With a connection in Tallinn, Estonia, Telia Carrier’s mesh network extends in different directions reaching multiple cities
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| ISSUE 8 | Q1 2017
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