Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Binarization-Loophole-Free Observation of High-Dimensional Quantum Nonlocality.

Physical review letters·2026
Same author

Experimental violation of a Bell-like inequality for causal order.

Science advances·2026
Same author

Certified quantum randomness within purity constraints.

Science advances·2026
Same author

Experimental Genuine Quantum Nonlocality in the Triangle Network.

Physical review letters·2026
Same author

High-Yield Engineering and Identification of Oxygen-Related Modified Divacancies in 4H-SiC.

Advanced materials (Deerfield Beach, Fla.)·2026
Same author

Magnetic-Free Optical Mode Degeneracy Lifting in Lithium Niobate Microring Resonators.

Physical review letters·2026

Related Experiment Video

Updated: May 2, 2026

Quantum State Engineering of Light with Continuous-wave Optical Parametric Oscillators
09:23

Quantum State Engineering of Light with Continuous-wave Optical Parametric Oscillators

Published on: May 30, 2014

13.9K

High-rate quantum key distribution with compact state preparation and detection.

Guan-Jie Fan-Yuan1,2, Wei-Xin Xie1,2, De-Yong He1,2,3

  • 1Chinese Academy of Sciences Key Laboratory of Quantum Information, University of Science and Technology of China, Hefei 230026, China.

Proceedings of the National Academy of Sciences of the United States of America
|April 30, 2026
PubMed
Summary

This study presents a practical quantum key distribution (QKD) system for secure communications. The compact system achieves high secure key rates over long distances, enabling future urban networks.

Keywords:
integrated opticsquantum informationquantum key distributionquantum opticssingle-photon detector

More Related Videos

Generation and Coherent Control of Pulsed Quantum Frequency Combs
06:42

Generation and Coherent Control of Pulsed Quantum Frequency Combs

Published on: June 8, 2018

9.0K
Large Scale Energy Efficient Sensor Network Routing Using a Quantum Processor Unit
05:30

Large Scale Energy Efficient Sensor Network Routing Using a Quantum Processor Unit

Published on: September 8, 2023

1.3K

Related Experiment Videos

Last Updated: May 2, 2026

Quantum State Engineering of Light with Continuous-wave Optical Parametric Oscillators
09:23

Quantum State Engineering of Light with Continuous-wave Optical Parametric Oscillators

Published on: May 30, 2014

13.9K
Generation and Coherent Control of Pulsed Quantum Frequency Combs
06:42

Generation and Coherent Control of Pulsed Quantum Frequency Combs

Published on: June 8, 2018

9.0K
Large Scale Energy Efficient Sensor Network Routing Using a Quantum Processor Unit
05:30

Large Scale Energy Efficient Sensor Network Routing Using a Quantum Processor Unit

Published on: September 8, 2023

1.3K

Area of Science:

  • Quantum Information Science
  • Secure Communications Technology
  • Applied Physics

Background:

  • Quantum key distribution (QKD) offers information-theoretic security but faces practicality challenges for network deployment.
  • High key generation rates and miniaturized components are essential for widespread QKD adoption.
  • Existing QKD systems often lack the necessary performance and compactness for real-world applications.

Purpose of the Study:

  • To develop a deployable quantum key distribution (QKD) system with high secure key rates.
  • To miniaturize quantum-state preparation and detection modules for enhanced practicality.
  • To establish a feasible roadmap for high-capacity, secure urban communication networks.

Main Methods:

  • Integrated a dual-parallel Mach-Zehnder encoder for unified, high-fidelity preparation of polarization and decoy states using single-step modulation.
  • Developed miniaturized single-photon avalanche detectors operating at 2.5 GHz for high count rates and low noise.
  • Designed a compact QKD system architecture for improved deployability.

Main Results:

  • Achieved secure key rates of 60.33 ± 0.03 Mbps at 10 km and 3.08 ± 0.20 Mbps at 100 km.
  • Demonstrated high-fidelity state preparation and efficient single-photon detection.
  • Validated the system's performance in a compact and deployable design.

Conclusions:

  • The developed QKD system offers a high-performance, compact solution for secure communications.
  • This technology provides a feasible roadmap for deploying secure urban communication networks with high capacity.
  • The advancements in key generation rate and module miniaturization address critical practical challenges in QKD deployment.