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Q: Fachverband Quantenoptik und Photonik
Q 31: Quantum Networks, Repeaters, and QKD III (joint session Q/QI)
Q 31.8: Vortrag
Mittwoch, 12. März 2025, 12:45–13:00, AP-HS
Photonic-integrated components for satellite-based QKD aboard the launched mission QUBE — •Ömer Bayraktar1,2, Jonas Pudelko1,2, Joost Vermeer1,2, and Christoph Marquardt1,2 — 1Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany — 2Max Planck Insitute for the Science of Light, Erlangen, Germany
Satellite-based quantum key distribution (SatQKD) presents a promising advancement in secure communications. CubeSats, in particular, offer a cost-effective means for conducting QKD over long distances; however, they necessitate the creation of highly integrated optical systems. Within the framework of the QUBE mission, we have developed an integrated sender for modulated weak coherent states and an integrated quantum random number generator. Following the successful launch of the QUBE satellite in August 2024, we report on the progress achieved and the challenges encountered in one of only a few missions testing components for SatQKD in space.
Keywords: Quantum Key Distribution; Quantum Random Number Generator; Photonic Integration; CubeSat