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Proceedings Paper

A flexible continuous-variable QKD system using off-the-shelf components
Author(s): 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
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Paper 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.

Paper Details

Date Published: 5 October 2017
PDF: 7 pages
Proc. SPIE 10442, Quantum Information Science and Technology III, 104420A (5 October 2017); doi: 10.1117/12.2279913
Show Author Affiliations
Lucian C. Comandar, Huawei Technologies Duesseldorf GmbH (Germany)
Hans H. Brunner, Huawei Technologies Duesseldorf GmbH (Germany)
Stefano Bettelli, Huawei Technologies Duesseldorf GmbH (Germany)
Fred Fung, Huawei Technologies Duesseldorf GmbH (Germany)
Fotini Karinou, Huawei Technologies Duesseldorf GmbH (Germany)
David Hillerkuss, Huawei Technologies Duesseldorf GmbH (Germany)
Spiros Mikroulis, Huawei Technologies Duesseldorf GmbH (Germany)
Dawei Wang, Huawei Technologies Duesseldorf GmbH (Germany)
Maxim Kuschnerov, Huawei Technologies Duesseldorf GmbH (Germany)
Changsong Xie, Huawei Technologies Duesseldorf GmbH (Germany)
Andreas Poppe, Huawei Technologies Duesseldorf GmbH (Germany)
Momtchil Peev, Huawei Technologies Duesseldorf GmbH (Germany)


Published in SPIE Proceedings Vol. 10442:
Quantum Information Science and Technology III
Mark T. Gruneisen; Miloslav Dusek; John G. Rarity, Editor(s)

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