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ETH Zurich researchers transmitted a net 138.6 gigabits per second wirelessly from Uetliberg to the ETH campus, a distance of 5.5 kilometres. Operating at 273 GHz, the link crossed urban terrain, waterways and forest. A resonant plasmonic modulator converted the weak incoming radio signal into light, while improvements to the optical receiver doubled its sensitivity.

The result demonstrates fibre-like capacity over a city-scale wireless connection, potentially useful where installing cable is difficult or for temporary backup links. Measurements covered about six and a half hours on one July afternoon and evening. Reliability across seasons and in rain remains to be tested.

Colt launched a fully managed SCION networking service across Europe, North America and Asia using Zurich-based Anapaya's technology. Commercial availability follows a two-year proof of concept, including testing with financial-sector organisations. The service lets customers define, audit and enforce the paths their traffic takes, giving them control over routing for sensitive or regulated communications.

Colt offers two configurations: SCION private connects customers to existing private ecosystems and extranets, while SCION Global provides a WAN for an organisation's backbone network. The release describes security and resilience benefits but provides no quantified performance benchmark or service-availability measurements.