Compact Continuous-Variable Quantum Key Distribution System Employing Monolithically Integrated Silicon Photonic Transceiver

Denis Fatkhiev; João dos Reis Frazão; Alireza H. Derkani; Kadir Gümüş; Menno van den Hout; Aaron Albores-Mejia; Chigo Okonkwo

doi:10.1109/ECOC66593.2025.11263038

Compact Continuous-Variable Quantum Key Distribution System Employing Monolithically Integrated Silicon Photonic Transceiver

Quantum Physics 2026-03-31 v1 Systems and Control Systems and Control

Authors: Denis Fatkhiev , João dos Reis Frazão , Alireza H. Derkani , Kadir Gümüş , Menno van den Hout , Aaron Albores-Mejia , Chigo Okonkwo

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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.

Keywords

quantum key distribution

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@article{arxiv.2603.28310,
  title  = {Compact Continuous-Variable Quantum Key Distribution System Employing Monolithically Integrated Silicon Photonic Transceiver},
  author = {Denis Fatkhiev and João dos Reis Frazão and Alireza H. Derkani and Kadir Gümüş and Menno van den Hout and Aaron Albores-Mejia and Chigo Okonkwo},
  journal= {arXiv preprint arXiv:2603.28310},
  year   = {2026}
}

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Accepted for presentation at European Conference on Optical Communications (ECOC) 2025

Compact Continuous-Variable Quantum Key Distribution System Employing Monolithically Integrated Silicon Photonic Transceiver

Abstract

Keywords

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