Comment on Japanese Institute breaks optical fiber speed record with 22.9 petabits per second — 1,000 times faster than existing cables

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Kazumara@feddit.de ⁨11⁩ ⁨months⁩ ago

Yes, to get their speeds they used the usual wavelength division multiplexing, except over an insane 750 wavelength channels, space division multiplexing over the 38 corse with 3 modes, and 256 QAM with dual-polarization in each

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