Nokia has announced a 600 Gbps transmission using its fifth generation photonic service engine (PSE-V) in a live trial on GlobalConnect's Go-Color terrestrial network for data centre interconnection services in the Nordic countries. It said this validates GlobalConnect's plan to upgrade its long-haul backbone networks with the Nokia 1830 PSI-M optical transport system. GlobalConnect aims to expand capacity on its existing reconfigurable optical add-drop multiplexer (ROADM) network.
In the trial, Nokia demonstrated error-free performance over a 781 km ring, eleven fibre spans and through six ROADM nodes with Colorless Directionless Connectionless and Flexgrid (CDC-F) equipment. By operating over spectrally efficient 100 GHz WDM channels, GlobalConnect will be able to scale total network capacity of 28.8T over the C+ band.
Anders Kuhn-Saaby, CTO at GlobalConnect, said Nokia’s new PSE-V super-coherent optics are an "important enabler" of its continuous network upgrades, operating smoothly on its live network with existing coherent channels.
James Watt, head of Nokia’s optical networks division, said the introduction of the PSE-Vs super coherent capabilities throughout its 1830 portfolio enables spectrally efficient network capacity upgrades on long-haul networks.
The PSE-V Super Coherent DSP (PSE-Vs) implements what Nokia says is the industry's only second generation probabilistic constellation shaping (PCS) with continuous baud rate adjustment. It supports higher wavelength capacities over longer distances, including support for 400G over any distance, over spectrally efficient 100GHz WDM channels, while cutting network costs and power consumption per bit.
