Shortwave DPS-QKD Employing a SiN Micro-Ring Resonator as Compact Quantum State Analyser

Florian Honz; Paul Müllner; Michael Hentschel; Stefan Nevlacsil; Jochen Kraft; Martin Sagmeister; Philip Walther; Rainer Hainberger; Bernhard Schrenk

Shortwave DPS-QKD Employing a SiN Micro-Ring Resonator as Compact Quantum State Analyser

Quantum Physics 2024-11-14 v1

Authors: Florian Honz , Paul Müllner , Michael Hentschel , Stefan Nevlacsil , Jochen Kraft , Martin Sagmeister , Philip Walther , Rainer Hainberger , Bernhard Schrenk

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Abstract

We show simplified DPS-QKD using a SiN micro-ring resonator operated at 852 nm. A raw-key rate of up to 25.3 kb/s is reached at a QBER suitable for secure-key extraction. Short-reach QKD operation is maintained for zero-touch link layouts with C-band telecom fiber.

Keywords

DPS-QKD SiN micro-ring resonator quantum state analyser quantum key distribution QBER C-band telecom fiber short-reach QKD zero-touch link

Cite

@article{arxiv.2411.08721,
  title  = {Shortwave DPS-QKD Employing a SiN Micro-Ring Resonator as Compact Quantum State Analyser},
  author = {Florian Honz and Paul Müllner and Michael Hentschel and Stefan Nevlacsil and Jochen Kraft and Martin Sagmeister and Philip Walther and Rainer Hainberger and Bernhard Schrenk},
  journal= {arXiv preprint arXiv:2411.08721},
  year   = {2024}
}

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