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

Dixon, A. R.; Dynes, J. F.; Lucamarini, Marco; Fröhlich, B.; Sharpe, A. W.; Plews, Alan; Tam, S.; Zhong, Yuan; Tanizawa, Yoshimichi; Sato, Hideaki; Kawamura, S; Fujiwara, Mikio; Sasaki, Masahide; Shields, A. J.

doi:10.1364/oe.23.007583

Cited by 69 publications

(54 citation statements)

References 32 publications

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“…Fortunately, quantum key distribution (QKD) provides a highly secure approach to sharing random encryption keys by transmitting single photons [2]. Although QKD has advanced from simple proof-of-principle experiments toward robust long-term demonstrations [3][4][5][6], it has still not obtained wide-scale adoption.…”

Section: Introductionmentioning

confidence: 99%

Integrated Silicon Photonics for High-Speed Quantum Key Distribution

Kennard

Sibson

Stanisic

et al. 2017

Conference on Lasers and Electro-Optics

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General rightsThis document is made available in accordance with publisher policies. Please cite only the published version using the reference above. Integrated photonics offers great potential for quantum communication devices in terms of complexity, robustness, and scalability. Silicon photonics in particular is a leading platform for quantum photonic technologies, with further benefits of miniaturization, cost-effective device manufacture, and compatibility with CMOS microelectronics. However, effective techniques for high-speed modulation of quantum states in standard silicon photonic platforms have been limited. Here we overcome this limitation and demonstrate high-speed low-error quantum key distribution modulation with silicon photonic devices combining slow thermo-optic DC biases and fast (10 GHz bandwidth) carrier-depletion modulation. The ability to scale up these integrated circuits and incorporate microelectronics opens the way to new and advanced integrated quantum communication technologies and larger adoption of quantumsecured communications.

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Section: Introductionmentioning

confidence: 99%

Integrated Silicon Photonics for High-Speed Quantum Key Distribution

Kennard

Sibson

Stanisic

et al. 2017

Conference on Lasers and Electro-Optics

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“…Underpinned by many new developments, including the establishment of a quantified security level [2], QKD technology has matured considerably in the last decade. Furthermore the technology is making the transition from the laboratory to successful field trials [3][4][5][6][7][8].…”

Section: Introductionmentioning

confidence: 99%

Quantum key distribution over multicore fiber

Dynes¹,

Kindness²,

Tam³

et al. 2016

Opt. Express

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Abstract:We present the first quantum key distribution (QKD) experiment over multicore fiber. With space division multiplexing, we demonstrate that weak QKD signals can coexist with classical data signals launched at full power in a 53 km 7-core fiber, while showing negligible degradation in performance. Based on a characterization of intercore crosstalk, we perform additional simulations highlighting that classical data bandwidths beyond 1Tb/s can be supported with high speed QKD on the same fiber. References and links

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“…In the commercial arena, in particular, great progresses have been recently achieved in the area of high-speed QKD and long distance quantum network systems [14][15][16][17][18][19][20][21][22][23][24][25]. Many studies on QKD security have been also conducted uninterruptedly since 1984, because providing security is essential for the commercialization of such systems.…”

Section: Introductionmentioning

confidence: 99%