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Nokia gets close to Shannon limit, pointing to new wave of optical performance

There is no knocking Nokia’s achievement in getting closer to the Shannon limit, the theoretical maximum performance possible over a single optical fiber, increasing capacity by 25% over the most recently deployed systems and up to 65% over older networks. Yet this aspect of Nokia’s new Photonic Service Engine (PSE) chipset is less useful for operators than some of the other features that increase flexibility in backhaul, fronthaul, access and transport networks. It also highlights the value of the Shannon limit for defining what is possible over optical networks and therefore identifying what other measures need to be taken to meet the exploding demand for data capacity over fiber infrastructures ranging from metro networks to trunk undersea cables. The answer…

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