Telia Carrier, Coriant successfully complete real-time optical awareness trials

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Telia Carrier and Coriant have successfully completed a live field trial of technology optimised for real-time optical performance awareness and dynamic provisioning of fibre optic capacity.

The trial was conducted on a live fibre route in Telia Carrier’s backbone network between Hamburg and Prague. During the trial, 200G wavelengths were provisioned on-demand based on the accurate and real-time (DSP-independent) visibility of residual margin and OSNR on the 1,300km long haul transmission route.

Powered by Coriant Aware Technology and CloudWave Optics, the live field trial featured what Telia Carrier described as an industry-first demonstration of in-service optical margin measurement without the need for additional hardware equipment. Residual margin, which can be impacted by OSNR, linear impairments, and non-linear impairments, is the most useful measure of received signal quality and enables operators to determine how much room there is for a signal to degrade without impacting error-free operation. Assessing residual margin correctly will enable higher throughput, policy-based margin assignments and preventive maintenance, taking optical networking into a new era.

Mattias Fridström, chief evangelist at Telia Carrier commented: ‘We were very pleased with the results of this trial, which proved out the operational value of optical performance awareness based on accurate residual margin measurement during real-time operations and state-of-life fibre conditions.’

Agreed Uwe Fischer, executive vice president, R&D and PLM, and CTO at Coriant: ‘This trial validates the progress we have made in delivering software-enabled tools that help network operators increase profitability through monetisation of dynamic optical networks and the ability to adapt to changing customer needs in real-time.’

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