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September 19, 20251 citations

Mbps-Key-Rate Continuous-Variable Quantum Key Distribution with Integrated Modulator and Receiver on Silicon Photonic Chips

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YBYiming BianXXXuesong XuXHXin Hua

Key Points

  • The system achieved a secret key rate of 4.7 Mbps over a distance of 15.5 km, showcasing its effectiveness.
  • Key innovations include an integrated modulator and receiver using silicon photonic technology for better performance.
  • Optimization of on-chip control processes facilitated enhanced digital signal processing, improving overall efficiency.
  • This development indicates a significant advancement in quantum key distribution technology, emphasizing the role of silicon photonics.

Abstract

We report a continuous-variable quantum key distribution system with a silicon photonic modulator and receiver, achieving a 4.7 Mbps secret key rate at 15.5 km through optimized on-chip operating point control and digital signal processing.

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Cite This Study

Bian et al. (2025) studied this question.

synapsesocial.com/papers/68d464f831b076d99fa64649https://doi.org/10.1364/cleo_at.2025.aa105_3
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