Grain-of-rice-sized light chip could help power faster 6G networks

A chip about the size of a grain of rice could help engineers build faster communications networks and more precise quantum technologies.

Researchers at Loughborough University and international partners have demonstrated a system that produces a precisely organised set of light frequencies known as a microcomb.

Those optical frequencies can be converted into multiple high-frequency electromagnetic signals, potentially creating useful building blocks for future 6G communications and precision timing.

The Loughborough design combines a tiny microresonator with a larger loop of optical fibre, allowing laser light to circulate through the system.

It is early-stage research rather than tomorrow's mobile upgrade, but it demonstrates how surprisingly small hardware could contribute to the infrastructure behind future communications.