• davad@lemmy.world
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    22 hours ago

    Is this a cool innovation? Yes. Over 100Gb/s wirelessly in a data center would be really cool.

    Does this “rival fiber optic speed”? No.

    Lay people don’t get how crazy amazing fiber optics is. Right now you can buy an off-the-shelf optical transceiver that does 800 Gb/s with a pair of passive fibers over 2km using a single wavelength. Why does it use a pair instead of a single fiber? Is 400 Gb/s the max you can transmit on a single fiber? No, it just makes the transceivers easier to make. I don’t know what the upper limit is per fiber, but it’s probably north of 100 Tb/s.

    If this piques your interest, check out the Grace Hopper cable. It’s designed to carry 352 Tb/s across the Atlantic on 32 fibers. With all the protective layers, the cable is about the size of a garden hose.

  • finalarbiter@lemmy.dbzer0.com
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    1 day ago

    Fastest way to discredit oneself, imo, is to slather a big fucking slop image that contributes less than nothing across the top of an article

  • A_A@lemmy.world
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    24 hours ago

    uses radio frequencies into 140-gigahertz territory, 230mW,

    “We developed a technique called hierarchical analog demodulation,” Hassan explained. “By breaking the signal down hierarchically in the analog domain, peeling apart the complex data layers before they’re digitized, we extract the data using a fraction of the power typically required.”