Fibre-Coupled GaSb Quantum Dot Tuneable Single-Photon Sources for Field Deployed Quantum Key Distribution

Project funded by Research Council of Finland, grant 361293. Participating organisations named by the source: Tampere University. Funded amount: EUR 413,736, as stated by the source. Runs 2024-01-01 to 2026-12-31. Keywords: Physical sciences. Source: OpenAIRE Graph, from the funder's project data (collected by OpenAIRE on 2024-09-13); national funding data, not CORDIS. Abstract given by the source: Quantum cryptography based on single photons theoretically enables ultimate security in contrast to the classical cryptography based on mathematical complexity. An ideal single-photon source for this purpose would emit triggered photons into an optical fiber. This can be achieved using semiconductor quantum dots as the photon source. However, the current state-of-the-art quantum dot sources are not wavelength-compatible with the fiberoptic telecommunication infrastructure. The goal of the FiGAnti project is to develop GaSb based quantum dots emitting at 1.5 µm and exploit them as high-performance fiber-coupled single-photon sources. These new quantum sources will be benchmarked against the commercially available quantum key distribution technology in a deployed fiber network. The research is carried out in an international consortium including leading groups of semiconductor quantum dot device and quantum photonics from Germany, France, Poland, and Sweden.

Original source.

Source: OpenAIRE Graph: projects of national funders, OpenAIRE, from the project data of Research Council of Finland. Retrieved 2026-10-22. Licence: Creative Commons Attribution 4.0 (OpenAIRE Graph). Selected metadata, adapted presentation; the publisher's record is authoritative. No endorsement by the source is implied. Licence: Creative Commons Attribution 4.0 (CC BY 4.0).

AI-assisted summary: The FiGAnti project, funded by the Research Council of Finland with EUR 413,736, aims to develop GaSb quantum dots for fiber-coupled single-photon sources, running from January 2024 to December 2026. It involves Tampere University and focuses on enhancing quantum key distribution technology. Suggested technology pillar: communication. Generated by AI from the public source text; it may contain errors and the original source is authoritative.