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

Dinka Milovančev; Nemanja Vokić

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arXiv · 2407.10517

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

Dinka Milovančev·Nemanja Vokić

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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).

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BibTeX RIS

Dinka Milovančev, Nemanja Vokić. 2024-07-15. Monolithically Integrated Ultra-Low Noise Balanced Receiver for CV-QKD. https://arxiv.org/abs/2407.10517

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