A 24 km fiber-based discretely signaled continuous variable quantum key distribution system

Quyen Dinh Xuan; Zheshen Zhang; Paul L. Voss

doi:10.1364/OE.17.024244

A 24 km fiber-based discretely signaled continuous variable quantum key distribution system

Quyen Dinh Xuan, Zheshen Zhang, Paul L. Voss

Research output: Contribution to journal › Article › peer-review

71 Scopus citations

Abstract

We report a continuous variable key distribution system that achieves a final secure key rate of 3.45 kilobits/s over a distance of 24.2 km of optical fiber. The protocol uses discrete signaling and post-selection to improve reconciliation speed and quantifies security by means of quantum state tomography. Polarization multiplexing and a frequency translation scheme permit transmission of a continuous wave local oscillator and suppression of noise from guided acoustic wave Brillouin scattering by more than 27 dB.

Original language	English (US)
Pages (from-to)	24244-24249
Number of pages	6
Journal	Optics Express
Volume	17
Issue number	26
DOIs	https://doi.org/10.1364/OE.17.024244
State	Published - Dec 21 2009
Externally published	Yes

ASJC Scopus subject areas

Atomic and Molecular Physics, and Optics

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A 24 km fiber-based discretely signaled continuous variable quantum key distribution system

Abstract

ASJC Scopus subject areas

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