A team of networking boffins has published fresh research on hollow fiber cables that it claims could offer the lowest ever recorded optical loss for a fiber – meaning the signal would weaken less as it travels, leading to faster speeds and lower latencies.

What happens when we can't just build bigger AI datacenters anymore?

Those lower latencies, crucially, could cut the time needed to move data between cloud datacenters, and well as speeding up mobile networks.

A few years ago, Microsoft bought Lumenisity , a spinoff from the University of Southampton that had already trialed its hollow-core fiber (HCF) cables with UK incumbent telco BT. The team, which is still attached to the university but now also enjoys Microsoft's hefty resources, said on Monday that it had finally come up with

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