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jacquesm
on Oct 20, 2021
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New Optical Switch Up to 1000x Faster Than Transis...
There is a special case: pumped laser amplification of signal in underwater fiber optic cables. That's all optical for the signal path as far as I know.
https://www.laserfocusworld.com/fiber-optics/article/1655109...
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https://www.laserfocusworld.com/fiber-optics/article/1655109...