5 October 2017 A flexible continuous-variable QKD system using off-the-shelf components
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Abstract
We present the development of a robust and versatile CV-QKD architecture based on commercially available optical and electronic components. The system uses a pilot tone for phase synchronization with a local oscillator, as well as local feedback loops to mitigate frequency and polarization drifts. Transmit and receive-side digital signal processing is performed fully in software, allowing for rapid protocol reconfiguration. The quantum link is complemented with a software stack for secure-key processing, key storage and encrypted communication. All these features allow for the system to be at the same time a prototype for a future commercial product and a research platform.
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Lucian C. Comandar, Hans H. Brunner, Stefano Bettelli, Fred Fung, Fotini Karinou, David Hillerkuss, Spiros Mikroulis, Dawei Wang, Maxim Kuschnerov, Changsong Xie, Andreas Poppe, Momtchil Peev, "A flexible continuous-variable QKD system using off-the-shelf components", Proc. SPIE 10442, Quantum Information Science and Technology III, 104420A (5 October 2017); doi: 10.1117/12.2279913; https://doi.org/10.1117/12.2279913
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