| |  Online-Ressource |
|---|
| Verfasst von: | Beutel, Fabian [VerfasserIn]  |
|---|
| | Brückerhoff-Plückelmann, Frank [VerfasserIn] |
|---|
| | Gehring, Helge [VerfasserIn] |
|---|
| | Kovalyuk, Vadim [VerfasserIn] |
|---|
| | Zolotov, Philipp [VerfasserIn] |
|---|
| | Goltsman, Gregory [VerfasserIn] |
|---|
| | Pernice, Wolfram [VerfasserIn] |
|---|
| Titel: | Fully integrated four-channel wavelength-division multiplexed QKD receiver |
|---|
| Verf.angabe: | Fabian Beutel, Frank Brückerhoff-Plückelmann, Helge Gehring, Vadim Kovalyuk, Philipp Zolotov, Gregory Goltsman, and Wolfram H.P. Pernice |
|---|
| E-Jahr: | 2022 |
|---|
| Jahr: | 30 September 2022 |
|---|
| Umfang: | 10 S. |
|---|
| Fussnoten: | Gesehen am 23.01.2023 |
|---|
| Titel Quelle: | Enthalten in: Optica |
|---|
| Ort Quelle: | Washington, DC : Optica, 2014 |
|---|
| Jahr Quelle: | 2022 |
|---|
| Band/Heft Quelle: | 9(2022), 10 vom: Okt., Seite 1121-1130 |
|---|
| ISSN Quelle: | 2334-2536 |
|---|
| Abstract: | Quantum key distribution (QKD) enables secure communication even in the presence of advanced quantum computers. However, scaling up discrete-variable QKD to high key rates remains a challenge due to the lossy nature of quantum communication channels and the use of weak coherent states. Photonic integration and massive parallelization are crucial steps toward the goal of high-throughput secret-key distribution. We present a fully integrated photonic chip on silicon nitride featuring a four-channel wavelength-division demultiplexed QKD receiver circuit including state-of-the-art waveguide-integrated superconducting nanowire single-photon detectors (SNSPDs). With a proof-of-principle setup operated at a clock rate of 3.35 GHz, we achieve a total secret-key rate of up to 12.17 Mbit/s at 10 dB channel attenuation with low detector-induced error rates. The QKD receiver architecture is massively scalable and constitutes a foundation for high-rate many-channel QKD transmission. |
|---|
| DOI: | doi:10.1364/OPTICA.468982 |
|---|
| URL: | Bitte beachten Sie: Dies ist ein Bibliographieeintrag. Ein Volltextzugriff für Mitglieder der Universität besteht hier nur, falls für die entsprechende Zeitschrift/den entsprechenden Sammelband ein Abonnement besteht oder es sich um einen OpenAccess-Titel handelt.
Volltext: https://doi.org/10.1364/OPTICA.468982 |
|---|
| | Volltext: https://opg.optica.org/optica/abstract.cfm?uri=optica-9-10-1121 |
|---|
| | DOI: https://doi.org/10.1364/OPTICA.468982 |
|---|
| Datenträger: | Online-Ressource |
|---|
| Sprache: | eng |
|---|
| Sach-SW: | Coherent states |
|---|
| | Mode division multiplexing |
|---|
| | Optical directional couplers |
|---|
| | Quantum communications |
|---|
| | Quantum key distribution |
|---|
| | Signal processing |
|---|
| K10plus-PPN: | 1831798689 |
|---|
| Verknüpfungen: | → Zeitschrift |
|---|
Fully integrated four-channel wavelength-division multiplexed QKD receiver / Beutel, Fabian [VerfasserIn]; 30 September 2022 (Online-Ressource)
