Nokia chips in to raise optical network capacity limit

Networking vendor Nokia is increasingly starting to look like a chipset company, with its third major chip launch in the past year.
This one is intriguingly called the Photonic Service Engine 3 (PSE-3), because it’s all about pushing optical network capacity to its theoretical limits. If you think that doesn’t sound quite science fiction enough then get a load of this: the PSE-3 chipset is the first coherent digital signal processor to implement probabilistic constellation shaping (P