Ultrafast quantum key distribution using fully parallelized quantum channels

被引：15

作者：

Terhaar, Robin ^{[1
]}

Roediger, Jasper ^{[2
]}

Haeussler, Matthias ^{[1
]}

Wahl, Michael ^{[3
]}

Gehring, Helge ^{[1
]}

Wolff, Martin A. ^{[1
]}

Beutel, Fabian ^{[1
]}

Hartmann, Wladick ^{[1
]}

Walter, Nicolai ^{[1
]}

Hanke, Jonas ^{[2
]}

Hanne, Peter ^{[2
]}

Walenta, Nino ^{[2
]}

Diedrich, Maximilian ^{[2
]}

Perlot, Nicolas ^{[2
]}

Tillmann, Max ^{[3
]}

Roehlicke, Tino ^{[3
]}

Ahangarianabhari, Mahdi ^{[3
]}

Schuck, Carsten ^{[1
]}

Pernice, Wolfram H. P. ^{[4
]}

机构：

[1] Univ Munster, Inst Phys, Heisenbergstr 11, D-48149 Munster, Germany

[2] Fraunhofer Heinrich Hertz Inst, Einsteinufer 37, D-10587 Berlin, Germany

[3] PicoQuant GmbH, Rudower Chaussee 29, D-12489 Berlin, Germany

[4] Heidelberg Univ, Kirchhoff Inst Phys, Neuenheimer Feld 227, D-69120 Heidelberg, Germany

来源：

OPTICS EXPRESS | 2023年 / 31卷 / 02期

基金：

欧洲研究理事会;

关键词：

SINGLE-PHOTON DETECTORS;

D O I：

10.1364/OE.469053

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

The field of quantum information processing offers secure communication protected by the laws of quantum mechanics and is on the verge of finding wider application for the information transfer of sensitive data. To improve cost-efficiency, extensive research is being carried out on the various components required for high data throughput using quantum key distribution (QKD). Aiming for an application-oriented solution, we report the realization of a multichannel QKD system for plug-and-play high-bandwidth secure communication at telecom wavelengths. We designed a rack-sized multichannel superconducting nanowire single photon detector (SNSPD) system, as well as a highly parallelized time-correlated single photon counting (TCSPC) unit. Our system is linked to an FPGA-controlled QKD evaluation setup for continuous operation, allowing us to achieve high secret key rates using a coherent-one-way protocol. (c) 2023 Optica Publishing Group under the terms of the Optica Open Access Publishing Agreement

引用

页码：2675 / 2688

页数：14

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