Conventional coherent modulation based on quadrature amplitude modulation (QAM) has limitations related to granularity, reach, and baud rate flexibility. A new modulation paradigm, probabilistic constellation shaping (PCS), promises to address these limitations while taking us to within touching distance of the Shannon limit, the theoretical maximum data capacity for a given amount of spectrum in the presence of noise.
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Infinera (NASDAQ: INFN) provides Intelligent Transport Networks, enabling carriers, cloud operators, governments and enterprises to scale network bandwidth, accelerate service innovation and automate optical network operations. Infinera’s end-to-end packet-optical portfolio is designed for long-haul, subsea, data center interconnect and metro applications. Infinera’s unique large scale photonic integrated circuits enable innovative optical networking solutions for the most demanding networks. To learn more about Infinera visit www.infinera.com, follow us on Twitter @Infinera and read our latest blog posts at www.infinera.com/blog.