European Space Agency target met, a gigahertz of entangled photons
Covesion has reported a polarization-entangled photon-pair source at 1560 nm that exceeds a 1 GHz generation rate, meeting a target set by the European Space Agency. The result addresses a key performance requirement for high-rate quantum key distribution and quantum information processing.
AI analysis — not reported by the source
What this could mean
- 0–2 yearsPlausible
This could accelerate space-based QKD by enabling low-Earth-orbit satellites to distribute secret keys at rates high enough for continuous encrypted links, provided the source survives launch and space qualification.
A 1 GHz entangled-pair source at a telecom wavelength matches existing fiber and free-space optical infrastructure; if integrated and qualified, it could support high-rate satellite downlinks within two years.
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