Compact Continuous-Variable Quantum Key Distribution System Employing Monolithically Integrated Silicon Photonic Transceiver
Denis Fatkhiev, Jo\~ao dos Reis Fraz\~ao, Alireza H. Derkani, Kadir G\"um\"u\c{s}, Menno van den Hout, Aaron Albores-Mejia, and Chigo Okonkwo
TL;DR
This paper presents a novel silicon photonic transceiver for continuous-variable quantum key distribution, achieving high secret key rates over 25 km fiber, demonstrating the practicality of integrated quantum communication systems.
Contribution
Introduction of the first monolithic silicon photonic CV-QKD system with high secret key rate and integrated transceiver design.
Findings
Achieved 1.9 Mbit/s secret key rate over 25 km fiber.
Demonstrated the potential of electronic-photonic integration for practical QKD.
First CV-QKD system with monolithic silicon photonic transceiver.
Abstract
We demonstrate the first CV-QKD system featuring a custom-designed monolithic silicon photonic dual-polarisation transceiver. Leveraging PS-64-QAM, we achieved 1.9 Mbit/s secret key rate across 25 km of standard single-mode fibre, highlighting the potential of electronic-photonic integration for practical QKD.
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