Field demonstration of a continuous-variable quantum key distribution network

D Huang, P Huang, H Li, T Wang, Y Zhou, G Zeng - Optics letters, 2016 - opg.optica.org
We report on what we believe is the first field implementation of a continuous-variable
quantum key distribution (CV-QKD) network with point-to-point configuration. Four QKD …

Field test of wavelength-saving quantum key distribution network

S Wang, W Chen, ZQ Yin, Y Zhang, T Zhang, HW Li… - Optics letters, 2010 - opg.optica.org
We propose a wavelength-saving topology of a quantum key distribution (QKD) network
based on passive optical elements, and we report on the field test of this network on …

Long-distance continuous-variable quantum key distribution over 202.81 km of fiber

Y Zhang, Z Chen, S Pirandola, X Wang, C Zhou, B Chu… - Physical review …, 2020 - APS
Quantum key distribution provides secure keys resistant to code-breaking quantum
computers. The continuous-variable version of quantum key distribution offers the …

Plug-and-play continuous-variable quantum key distribution for metropolitan networks

R Valivarthi, S Etcheverry, J Aldama, F Zwiehoff… - Optics express, 2020 - opg.optica.org
We report a plug-and-play continuous variable quantum key distribution system (CV-QKD)
with Gaussian modulated quadratures and a true local oscillator. The proposed …

Field experiment on a “star type” metropolitan quantum key distribution network

W Chen, ZF Han, T Zhang, H Wen… - IEEE Photonics …, 2009 - ieeexplore.ieee.org
Quantum key distribution (QKD) networks have recently attracted growing attention. The
topology of the local QKD network is the basis of the next-generation global secure …

Twin-field quantum key distribution over a 511 km optical fibre linking two distant metropolitan areas

JP Chen, C Zhang, Y Liu, C Jiang, WJ Zhang… - Nature …, 2021 - nature.com
The basic principle of quantum mechanics guarantees the unconditional security of quantum
key distribution (QKD),,,–at the cost of forbidding the amplification of a quantum state. As a …

Continuous-variable quantum key distribution with 1 Mbps secure key rate

D Huang, D Lin, C Wang, W Liu, S Fang, J Peng… - Optics express, 2015 - opg.optica.org
We report the first continuous-variable quantum key distribution (CVQKD) experiment to
enable the creation of 1 Mbps secure key rate over 25 km standard telecom fiber in a coarse …

Quantum key distribution for 10 Gb/s dense wavelength division multiplexing networks

KA Patel, JF Dynes, M Lucamarini, I Choi… - Applied Physics …, 2014 - pubs.aip.org
We demonstrate quantum key distribution (QKD) with bidirectional 10 Gb/s classical data
channels in a single fiber using dense wavelength division multiplexing. Record secure key …

High speed prototype quantum key distribution system and long term field trial

AR Dixon, JF Dynes, M Lucamarini, B Fröhlich… - Optics express, 2015 - opg.optica.org
Securing information in communication networks is an important challenge in today's world.
Quantum Key Distribution (QKD) can provide unique capabilities towards achieving this …

Field test of quantum key distribution in the Tokyo QKD Network

M Sasaki, M Fujiwara, H Ishizuka, W Klaus, K Wakui… - Optics express, 2011 - opg.optica.org
A secure communication network with quantum key distribution in a metropolitan area is
reported. Six different QKD systems are integrated into a mesh-type network. GHz-clocked …