Cyber security solutions

Security and sovereignty of information are granted today by complex algorithm-based cryptography. The rise of quantum computing will challenge our state-of-the-art, mathematical based encryption technologies. By fighting quantum challenges with quantum technologies, we develop and deliver quantum key distribution (QKD) systems based on entangled photons. This allows the implementation of cyber security solutions on the fundamentals of physical laws. We enable a quantum added value.

About Quantum Entanglement:

  • A truly quantum mechanical property
  • Only two particles can be entangled at once and they will be described as one system until measurement
  • Single photon measurements enable the verification of entangled states and the generation of unique cyber security features
  • No need of QRNG or RNG
  • Mostly passive elements and a minimum of electronics

We offer quantum key distribution solutions for fiber-based networks as well as payloads and sub-systems for QKD-satellite networks and constellations. 

Quantum Key Distribution Systems

The building blocks for the »Elvis« QKD systems consist of the entangled photon pair source »HD«, the polarization analyzing and control sub-systems »PAM«, and our unique quantum protocol implementation »LLC«, which is based on the BBM92 protocol. The modularity enables cost-efficient implementation for data-center connections and communication networks as well as experimental setups. Short distance and free space QKD systems at 800 nm wavelength and long-distance fiber-network systems at 1300 nm and 1500 nm are available.

The building blocks for the »Elvis« QKD systems consist of the entangled photon pair source »HD«, the polarization analyzing and control sub-systems »PAM«, and our unique quantum protocol implementation »LLC«, which is based on the BBM92 protocol. The modularity enables cost-efficient implementation for data-center connections and communication networks as well as experimental setups. Short distance and free space QKD systems at 800 nm wavelength and long-distance fiber-network systems at 1300 nm and 1500 nm are available.

We will gladly advise you in planning star-like, multi-user, or long-distance trusted node networks. Different protocol options for the implementation to encryptors and existing infrastructures are available, e.g. ETSI QKD 014. Customized management and hardware status interfaces are available for easy maintenance as well as experimental applications with enhanced characterization needs.  

ELVIS 800 ELVIS 1500
Wavelength in nm 780 – 830 1300 – 1550
Fidelity in % > 92 > 92
QBER in % < 9 < 9
Server-Rack height in HU max. 3 max. 3 + detector setup
Secure Key Rate (10 dB loss) in Bits/s > 1.500 > 1.000

Entangled photon pair sources for fiber networks and space applications

Our »HD« product line stands for outstanding performance with highest entangled photon pair numbers to generate secure encryption keys, quantum imaging setups, or quantum technology experiments. Our customized system will generate polarization entangled photon pairs. The sources will be available for wavelengths around 800 nm, 1300 nm (O-Band), or 1500 nm (C-Band).

The »HD« products are characterized by a compact design, a high-precision fabrication and assembly on a thermo-mechanically stable platform. Our core technology covers the effective integration and deterministic assembly algorithms to achieve highest accuracies.

HD 800 HD 1300 HD 1500
Wavelength in nm 800 1300 (O-Band) 1500 (C-Band)
Entangled photon pairs in Mio./sec > 50 > 40 > 40
Fidelity in % > 97 > 97 > 97
Heralding in % 15 – 20 13 – 18 15 – 20
Spectral bandwidth in nm 0.6 or 3 0.6 or 3 0.6 or 3
Size in mm (width, depth, height) 290 x 165 x 60 290 x 165 x 60 290 x 165 x 60
Application fields Short distance fiber networks (<8km), space, free-space links Middle and long distance fiber networks Middle and long distance fiber networks

Polarization Analyzing Modules

Polarization Analyzing Module »PAM«

Our »PAM« product line enables the automated and self-calibrated measurement of vertical and horizontal polarization states. The sub-system will be available with free space optics for experimental setups or fiber coupled for integration in data centers or communication networks. Within our QKD-system the patent-protected automated polarization control secures long-term stability under varying and changing environmental conditions. 

Self-calibrating and automized polarization control

All systems will be delivered with software tools for data acquisition. In QKD setups the automated polarization control optimizes the Quantum Bit Error Rate (QBER) to the optimal value during operation and highest key rates.  

PAM 800 PAM 1500
Wavelenght in nm  750 – 850 1100 – 1550
Available detectors Single Photon Avalanche Diodes (SPAD),
efficiency > 50%
Superconducting Nanowire Single Photon Detectors (SNSPD),
efficiency > 60%
Self-calibration Yes Yes
Size in mm (width, depth, height) 157 x 109 x 26 157 x 109 x 26