Quantum Entanglement Controllers
"Self-calibrating electronic controller for satellite quantum entanglement source" is the new project funded by the National Centre for Research and Development. This R&D project is the first step towards ensuring constant high-quality generation of entangled photon pairs for satellite QKD missions of the future.
The main functions of the electronic controller will be:
- control of piezoelectric actuators and stepper motors for opto-mechanical assembly,
- PPKTP crystal temperature regulation down to ± 0.5 °C accuracy,
- photon counters and coincidence detection in TTL/NIM standard,
- measurment of Bell’s parameter and state fidelity, as feedback information on controller’s performance, allowing to initiate quantum entanglement source self-calibration.