'Exactly one photon': European scientists have built the first block of a truly unhackable global quantum internet that can run on existing fiber networks — breaking what was once thought to be an impossible barrier to transmit identical light particles
European scientists at the Niels Bohr Institute have developed a quantum photon source that emits exactly one photon at a time within the 1300nm wavelength range used by existing telecom fiber networks. This breakthrough enables the transmission of identical light particles without the need for noisy frequency conversion, overcoming a major barrier to quantum networking. The technology is compatible with silicon chips, paving the way for scalable and secure global quantum internet infrastructure.
- ▪Researchers at the Niels Bohr Institute created quantum dots that emit single photons at 1300nm, aligning with standard telecom fiber wavelengths.
- ▪The new photon source eliminates the need for frequency conversion, reducing noise and improving signal integrity in quantum communication.
- ▪Single-photon emission ensures secure quantum data transmission, as it prevents information duplication during transfer.
- ▪The system's compatibility with silicon chip technology supports future scalability of quantum networks.
- ▪Previous quantum dot systems operated at 930nm, which was incompatible with long-distance fiber optic infrastructure.
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Pro 'Exactly one photon': European scientists have built the first block of a truly unhackable global quantum internet that can run on existing fiber networks — breaking what was once thought to be an impossible barrier to transmit identical light particles News By Wayne Williams published 1 May 2026 There are still big engineering challenges ahead, however When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. (Image credit: Shutterstock) Copy link Facebook X Whatsapp Reddit Pinterest Flipboard Threads Email Share this article 0 Join the conversation Follow us Add us as a preferred source on Google Newsletter Subscribe to our newsletter Quantum photon source works directly inside existing telecom fiber wavelength rangesNew quantum dots…
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