Monolithically Integrated Ultra-Low Noise Balanced Receiver for CV-QKD
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arXiv
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| Main Authors: | , |
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| Format: | Preprint |
| Published: |
2024
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| _version_ | 1866914871290888192 |
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| author | Milovančev, Dinka Vokić, Nemanja |
| author_facet | Milovančev, Dinka Vokić, Nemanja |
| contents | 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). |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2407_10517 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Monolithically Integrated Ultra-Low Noise Balanced Receiver for CV-QKD Milovančev, Dinka Vokić, Nemanja Quantum Physics 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). |
| title | Monolithically Integrated Ultra-Low Noise Balanced Receiver for CV-QKD |
| topic | Quantum Physics |
| url | https://arxiv.org/abs/2407.10517 |