On-Demand Generation of Entangled Photon Pairs in the Telecom C-Band with InAs Quantum Dots.
Journal
ACS photonics
ISSN: 2330-4022
Titre abrégé: ACS Photonics
Pays: United States
ID NLM: 101634366
Informations de publication
Date de publication:
18 Aug 2021
18 Aug 2021
Historique:
received:
02
04
2021
entrez:
3
9
2021
pubmed:
4
9
2021
medline:
4
9
2021
Statut:
ppublish
Résumé
Entangled photons are an integral part in quantum optics experiments and a key resource in quantum imaging, quantum communication, and photonic quantum information processing. Making this resource available on-demand has been an ongoing scientific challenge with enormous progress in recent years. Of particular interest is the potential to transmit quantum information over long distances, making photons the only reliable flying qubit. Entangled photons at the telecom C-band could be directly launched into single-mode optical fibers, enabling worldwide quantum communication via existing telecommunication infrastructure. However, the on-demand generation of entangled photons at this desired wavelength window has been elusive. Here, we show a photon pair generation efficiency of 69.9 ± 3.6% in the telecom C-band by an InAs/GaAs semiconductor quantum dot on a metamorphic buffer layer. Using a robust phonon-assisted two-photon excitation scheme we measure a maximum concurrence of 91.4 ± 3.8% and a peak fidelity to the Φ
Identifiants
pubmed: 34476289
doi: 10.1021/acsphotonics.1c00504
pmc: PMC8377713
doi:
Types de publication
Journal Article
Langues
eng
Pagination
2337-2344Informations de copyright
© 2021 The Authors. Published by American Chemical Society.
Déclaration de conflit d'intérêts
The authors declare no competing financial interest.
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