A flexible continuous-variable QKD system using off-the-shelf components
| Autor: | Dawei Wang, Fotini Karinou, Maxim Kuschnerov, D. Hillerkuss, L. C. Comandar, Fred Fung, Spiros Mikroulis, Stefano Bettelli, Changsong Xie, Andreas Poppe, Momtchil Peev, Hans H. Brunner |
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| Rok vydání: | 2017 |
| Předmět: |
Pilot signal
business.industry Computer science Local oscillator Control reconfiguration Quantum key distribution 01 natural sciences 010305 fluids & plasmas Software Quantum cryptography visual_art 0103 physical sciences Electronic component visual_art.visual_art_medium 010306 general physics business Digital signal processing Computer hardware |
| Zdroj: | Quantum Information Science and Technology III. |
| DOI: | 10.1117/12.2279913 |
| Popis: | 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. |
| Databáze: | OpenAIRE |
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