Nokia and German service provider M-net have jointly announced the first field trial of probabilistically shaped wavelengths using Nokia Photonic Service Engine 3 (PSE 3) super coherent technology.
In preparation for the roll-out of its state-of-the-art Bavarian WDM network, M-net has become the first carrier to trial Nokia's Photonic Service Engine 3 coherent digital signal processing technology. The PSE-3 is the first DSP to implement probabilistic constellation shaping, or PCS, a sophisticated signal processing technique pioneered by Bell Labs which finely adjusts the optical signal to maximize the data-carrying capacity of an optical fiber over any distance.
M-net successfully transmitted 500G per wavelength over a deployed regional network, utilizing PCS to shape the signal from its maximum capacity of 600G to a rate optimized for the specific fiber route used in the test. This high level of performance and flexibility enables M-net to maximize the capacity of every network fiber, ensuring their innovative backbone will meet the demands of soaring video traffic and 5G mobile broadband.