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Quantum Cryptography Security

The avalanche delay effect in sine-gated single-photon detector based on InGaAs/InP SPADs

arXiv
Authors: Alexandr Filyaev, Anton Losev, Vladimir Zavodilenko, Igor Pavlov

Year

2023

Paper ID

54075

Status

Preprint

Abstract Read

~2 min

Abstract Words

109

Citations

N/A

Abstract

A sine-gated single-photon detector (SPD) intended for use in a quantum key distribution (QKD) system is considered in this paper. An "avalanche delay" effect in the sine-gated SPD is revealed. This effect consists in the appearance of an avalanche triggered at the next gate after the photon arrival gate. It has been determined experimentally that the nature of this effect is not related to the known effects of afterpulsing or charge persistence. This effect negatively affects the overall error rate in the QKD system. The influence of the main detector control parameters, such as temperature, gate amplitude and comparator's threshold voltage, on the avalanche delay effect was experimentally established.

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  • This paper contributes to the Quantum Cryptography & Security research area in the Quantum Articles archive.
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  • A sine-gated single-photon detector (SPD) intended for use in a quantum key distribution (QKD) system is considered in this paper.

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References & Citation Signals

[1] DOI https://doi.org/arXiv:2310.04281 [2] arXiv https://arxiv.org/abs/2310.04281 [3] Publisher https://arxiv.org/abs/2310.04281

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