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Re:1.53 Petabits per Second Transmission in 55-Mode Fiber by dale_glass on Tuesday November 15, 2022 @07:15AM (#33608201)
While this is really neat, is it actually much of a problem?

I mean, fiber is cheap and you can put many strands into a not particularly thick cable, and there's DWDM as another comment says.

Is actually running into the limits of the fiber a frequent occurrence anywhere in the industry, like in the submarine cables?

Re:1.53 Petabits per Second Transmission in 55-Mode Fiber by tyingq on Tuesday November 15, 2022 @08:25AM (#33608850)
Assuming it works on existing fiber, just more bandwidth without new install costs.