CESNET successfully tested the new TOSHIBA LD QKD system

Clock icon 19. May 2025

CESNET's OptiLAB recently tested a newly acquired TOSHIBA LD quantum key distribution (QKD) system that represents the cutting edge of secure quantum communication. This system enables the generation and distribution of cryptographic keys based on quantum phenomena, thus ensuring an extremely high level of security against eavesdropping. The acquisition of the QKD system is part of a broader strategy to develop a quantum secure infrastructure and its deployment opens up new opportunities for research in quantum cryptography and single photon physics.

As part of initial tests, the TOSHIBA LD system was integrated into the laboratory's existing optical infrastructure and subjected to a series of tests. Testing confirmed the stable operation of the device, successfully generating keys at different optical link lengths between the two sides of the QKD system. The team of experts is now preparing scenarios for further testing and also for deploying the system in real conditions. This represents an important milestone in the development of next-generation secure networks.

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