From Intra-Datacenter Interconnects to Metro Networks: Does CV-QKD Need Loss- or Bandwidth-Conscious Receivers?

Florian Honz; Fabian Laudenbach; Hannes Hübel; Philip Walther; Bernhard Schrenk

From Intra-Datacenter Interconnects to Metro Networks: Does CV-QKD Need Loss- or Bandwidth-Conscious Receivers?

Quantum Physics 2022-10-04 v1

Authors: Florian Honz , Fabian Laudenbach , Hannes Hübel , Philip Walther , Bernhard Schrenk

Abstract

We experimentally compare a loss-optimized coherent heterodyne and a bandwidth-blessed intradyne CV-QKD architecture. We find the former to prevail performance-wise for medium/long link reach, while the latter features a 5-9 dB higher secure-key rate over short reach.

Keywords

cv-qkd coherent heterodyne intradyne secure-key rate datacenter interconnects metro networks receiver design

Cite

@article{arxiv.2210.00230,
  title  = {From Intra-Datacenter Interconnects to Metro Networks: Does CV-QKD Need Loss- or Bandwidth-Conscious Receivers?},
  author = {Florian Honz and Fabian Laudenbach and Hannes Hübel and Philip Walther and Bernhard Schrenk},
  journal= {arXiv preprint arXiv:2210.00230},
  year   = {2022}
}

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