Quantum Key Distribution System for High-Security Data Protection
Future-Proof Protection Against Quantum Computer Threats
Fraunhofer HHI's Quantum Key Distribution (QKD) system provides long-term secure protection for sensitive data and communication applications. The powerful system seamlessly integrates into modern telecommunications infrastructures and uses both fiber optic and free-space transmissions to distribute cryptographic keys quickly and securely.
Time to digital converter with sub nanosecond resolution
A versatile measurement device for digitizing events in time domain with a resolution down to 0.1 nanoseconds.
Fraunhofer HHI’s Timetagger is a versatile measurement device with multiple input channels allowing digitizing the time of events with a resolution of 100 ps. Switching threshold and hysteresis could be set for any input channel. The digitized events could be read by a network interface.
Precise Single Photon Detection for Quantum Applications
Compact Detector Module with High Sensitivity and Flexible Integration
The Single Photon Detection Module provides highly accurate single photon detection in the optical C and O bands. It offers exceptional sensitivity, low dark count rates, and can be flexibly integrated as a single or multi-detector module in quantum communication and computing systems.
Satellite Link Simulation for Aerospace
Realistic Models for Analyzing Communication Systems in Satellite Networks
Satellite link simulation enables precise analysis of communication system performance in aerospace applications. Custom-developed models allow for realistic testing under various scenarios and environmental conditions.
Single-Mode Optical Antennas for High-Speed and Quantum Communication
Free-Space Laser Links as Flexible Fiber Alternatives
The single-mode optical antennas enable bidirectional data transmission in the optical C-band and are compatible with DWDM technology. They serve as over-the-air bridges for classical and quantum optical fiber-based communication, ideal for last-mile connections and high-speed point-to-point links. Utilizing a multi-aperture approach, they offer high robustness against atmospheric influences and scalable reach.