Monolithically Integrated Ultra-Low Noise Balanced Receiver for CV-QKD

Dinka Milovančev; Nemanja Vokić

Monolithically Integrated Ultra-Low Noise Balanced Receiver for CV-QKD

Quantum Physics 2024-07-16 v1

Authors: Dinka Milovančev , Nemanja Vokić

Abstract

In this work we explore monolithic opto-electronic integration platform for significant down-scaling of input-referred noise in custom designed low-noise analog front-end used for balanced photodetection. The performance of such monolithically integrated approach is compared to heterogeneously integrated solution designed in the same technology which requires wire-bonding to the balanced photodetectors. The designed circuits are targeting bandwidth above 1 GHz. The improved noise performance is leveraged against increased secure key rates and achievable reach in continuous-variable quantum key distribution (CV-QKD).

Keywords

CV-QKD balanced photodetection low-noise analog front-end monolithic integration quantum key distribution

Cite

@article{arxiv.2407.10517,
  title  = {Monolithically Integrated Ultra-Low Noise Balanced Receiver for CV-QKD},
  author = {Dinka Milovančev and Nemanja Vokić},
  journal= {arXiv preprint arXiv:2407.10517},
  year   = {2024}
}

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