Challenges
Datasets
Workspaces
Papers
Discussions
Leaderboard
Log inSign up
Challenges
Datasets
Workspaces
Papers
Discussions
Leaderboard
Blog
Job Board
Q3AS

© 2026 Aqora Quantum S.A.S.

TermsPrivacyLegal Notice

Bulletin of the American Physical Society

High-speed polarization-encoded quantum key distribution based on silicon photonic integrated devices

Darius Bunandar, Junji Urayama, Nicholas A. Boynton, Nicholas Martinez, Christopher Todd Derose, Anthony L. Lentine, Paul Davids, Ryan M. Camacho, Franco N. C. Wong, Dirk Englund

Published Mar 16, 2017• 0 citations
OpenAlex

Related papers

Wavelength-division multiplexed quantum key distribution on silicon photonic integrated devices

Darius Bunandar, Nicholas C. Harris, Zheshen Zhang +7 more

Bulletin of the American Physical Society•Mar 5, 2018•1 citation

High-Speed Measurement-Device-Independent Quantum Key Distribution with Integrated Silicon Photonics

Kejin Wei, Wei Li, Hao Tan +12 more

Measurement-device-independent quantum key distribution (MDI QKD) removes all detector side channels and enables secure QKD with an untrusted relay.It is suitable for building a star-type quantum access network, where the complicated and expensive measurement devices are placed in the central untrusted relay and each user requires only a low-cost transmitter, such as an integrated photonic chip.Here, we experimentally demonstrate a 1.25-GHz silicon photonic chip-based MDI QKD system using polarization encoding.The photonic chip transmitters integrate the necessary encoding components for a standard QKD source.We implement random modulations of polarization states and decoy intensities, and demonstrate a finite-key secret rate of 31 bit=s over 36-dB channel loss (or 180-km standard fiber).This key rate is higher than state-of-the-art MDI QKD experiments.The results show that silicon photonic chipbased MDI QKD, benefiting from miniaturization, low-cost manufacture, and compatibility with CMOS microelectronics, is a promising solution for future quantum secure networks.

arXiv:1911.00690•Physical Review X•Aug 10, 2020•233 citations

Quantum Key Distribution based on Silicon Integrated Photonic Devices

Darius Bunandar, Nicholas C. Harris, Zheshen Zhang +6 more

Bulletin of the American Physical Society•Mar 17, 2016•0 citations

Integrated Silicon Photonic Transmitter for Polarization-Encoded Quantum Key Distribution

Chaoxuan Ma, Wesley D. Sacher, Zhiyuan Tang +5 more

We present a silicon optical transmitter for polarization-encoded quantum key distribution (QKD). The chip was fabricated in a standard silicon photonic foundry process and integrated a pulse generator, intensity modulator, variable optical attenuator, and polarization modulator in a 1.3 mm $\times$ 3 mm die area. The devices in the photonic circuit meet the requirements for QKD. The transmitter was used in a proof-of-concept demonstration of the BB84 QKD protocol over a 5 km long fiber link.

arXiv:1606.04407•Jun 14, 2016•5 citations

Integrated Photonics for Quantum Key Distribution

Philip Sibson, Alasdair B. Price, Stasja Stanisic +4 more

•Sep 16, 2016•0 citations

Integrated Silicon Photonics for High-Speed Quantum Key Distribution

Jake Kennard, Philip Sibson, Stasja Stanisic +3 more

Integrated silicon photonics offers great potential for quantum communication devices in terms of robustness and scalability. Here we demonstrate high-speed low-error QKD using silicon photonic devices combining slow thermo-optic DC biases and fast carrier-depletion modulation.

Conference on Lasers and Electro-Optics•Jan 1, 2017•3 citations
Measurement-device-independent quantum key distribution (MDI QKD) removes all detector side channels and enables secure QKD with an untrusted relay.It is suitable for building a star-type quantum access network, where the complicated and expensive measurement devices are placed in the central untrusted relay and each user requires only a low-cost transmitter, such as an integrated photonic chip.Here, we experimentally demonstrate a 1.25-GHz silicon photonic chip-based MDI QKD system using polarization encoding.The photonic chip transmitters integrate the necessary encoding components for a standard QKD source.We implement random modulations of polarization states and decoy intensities, and demonstrate a finite-key secret rate of 31 bit=s over 36-dB channel loss (or 180-km standard fiber).This key rate is higher than state-of-the-art MDI QKD experiments.The results show that silicon photonic chipbased MDI QKD, benefiting from miniaturization, low-cost manufacture, and compatibility with CMOS microelectronics, is a promising solution for future quantum secure networks.
We present a silicon optical transmitter for polarization-encoded quantum key distribution (QKD). The chip was fabricated in a standard silicon photonic foundry process and integrated a pulse generator, intensity modulator, variable optical attenuator, and polarization modulator in a 1.3 mm ×\times× 3 mm die area. The devices in the photonic circuit meet the requirements for QKD. The transmitter was used in a proof-of-concept demonstration of the BB84 QKD protocol over a 5 km long fiber link.