"We really think this could be transformative."
"If the new fiber can be manufactured and installed easily and proves to be durable, the result might be a faster, better classical Internet."
A hollow optical-fibre design replaces a solid glass core with five small cylinders, each containing two nested cylinders, attached to the inside rim of a main cylinder. Tube diameters are tuned so the central hollow gap admits only particular wavelengths, keeping appropriate light pulses confined rather than escaping. Fabrication begins with a roughly 20 cm preform whose hollows are pressurized during stretching to retain geometry as the structure reduces to about 100 micrometres. Lumenisity will produce the fibres. Existing hollow fibres serve niche roles (for example data-centre links), and hollow cores can yield roughly 45% faster light propagation, enabling higher capacity and longer-range links.
Read at Nature
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