A flexible continuous-variable QKD system using off-the-shelf components

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

doi:10.1117/12.2279913

5 October 2017 A flexible continuous-variable QKD system using off-the-shelf components

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

Author Affiliations +

Proceedings Volume 10442, Quantum Information Science and Technology III; 104420A (2017) https://doi.org/10.1117/12.2279913
Event: SPIE Security + Defence, 2017, Warsaw, Poland

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.

Citation Download Citation

Lucian C. Comandar, Hans H. Brunner, Stefano Bettelli, Fred Fung, Fotini Karinou, David Hillerkuss, Spiros Mikroulis, Dawei Wang, Maxim Kuschnerov, Changsong Xie, Andreas Poppe, and 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); https://doi.org/10.1117/12.2279913

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