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by virtuallynathan 810 days ago
Pretty wild for a single fiber, but super involved, using 5 different doping type amps. Current systems use just EDFAs (Erbium). These guys used Erbium, Thallium, Bismuth, and others.
1 comments
foobiekr 810 days ago
The latest one is also just more lambdas. Like that’s impressive but DWDM itself took a decade+ after gear was introduced.

Most of the time it’s easier to just add another few dozen fibers when laying cables.

link