Published in Nature Photonics earlier this month, the breakthrough introduces a fibre that guides light through a hollow core of air, rather than traditional solid glass, achieving the lowest signal loss ever recorded and enabling faster, more energy-efficient data transmission. Published in Nature Photonics earlier this month, the breakthrough introduces a fibre that guides light through a hollow core of air, rather than traditional solid glass, achieving the lowest signal loss ever recorded and enabling faster, more energy-efficient data transmission. For decades, optical fibers have relied on a solid glass core to guide light and have formed the backbone of global telecommunications. However, glass imposes a fundamental physical limitation because light travels through it approximately 30 percent slower than through air. In standard silica. "Hollow core fiber represents the next revolution in optical networking, offering unprecedented speeds and lower latency that traditional fiber simply cannot match," says Dr. In most cases, the. (Courtesy: Petrovich, M, Numkam Fokoua, E, Chen, Y et al. 1 decibel per kilometre" Nat. 1038/s41566-025-01747-5) Optical fibres form the backbone of the Internet, carrying light signals across the globe. These features make them very promising for.
