ECOC22 – CVhetint

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

ECOC 2022, Basel, Switzerland, Sep. 2022, We5.67


Florian Honz, Fabian Laudenbach, Hannes Hübel, Philip Walther, and Bernhard Schrenk


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.

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