Wavelength Division Multiplexing of 194 Continuous Variable Quantum Key Distribution Channels

Tobias A. Eriksson, Ruben S. Luis, Benjamin J. Puttnam, Georg Rademacher, Mikio Fujiwara, Yoshinari Awaji, Hideaki Furukawa, Naoya Wada, Masahiro Takeoka, Masahide Sasaki

Research output: Contribution to journalArticlepeer-review

5 Citations (Scopus)

Abstract

We demonstrate the first continuous variable quantum key distribution (CV-QKD) system with fully digital phase and polarization tracking, enabling the first wavelength division multiplexing experiment for CV-QKD. We transmit 194 × 0.5 GHz channels with 25 GHz channel spacing, demonstrating an aggregate estimated asymptotic secret key rate of 172.6 Mbit/s over 25 km.

Original languageEnglish
Article number8974260
Pages (from-to)2214-2218
Number of pages5
JournalJournal of Lightwave Technology
Volume38
Issue number8
DOIs
Publication statusPublished - 2020 Apr 15
Externally publishedYes

Keywords

  • Quantum key distribution
  • wavelength division multiplexing

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

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