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

• GarytheSnail@programming.dev ⁨11⁩ ⁨months⁩ ago

  Think glass pipe versus glass cylinder or rod. Though, I don’t think the hollow core is fully empty, it has some structure to it.

  Here is an example

  Source: www.rp-photonics.com/hollow_core_fibers.html

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  • Squizzy@lemmy.world ⁨11⁩ ⁨months⁩ ago

    I work with fibre and have never stopped to think if it is hollow or not. Thanks for this

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  • datelmd5sum@lemmy.world ⁨11⁩ ⁨months⁩ ago

    How do you weld that?

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    • GarytheSnail@programming.dev ⁨11⁩ ⁨months⁩ ago

      Absolutely no idea.

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• Kazumara@feddit.de ⁨11⁩ ⁨months⁩ ago

  I think that both fibers with air and those with vacuum exist, but it’s a bit far from my operational reality, so I’m not that sure. I just read in industry news that euNetworks has deployed 45 km of Lumenisity hollowcore fiber and that Microsoft bought Lumensity

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