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arXiv · 2607.00600

Influence of laser chirp and interferometer delay and imbalance on the performance of a time-bin BB84 quantum key distribution system

Loïc Millet·Alberto Boaron·Rob Thew·Gianluca Boso
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Abstract

We investigate the effect of interferometer delay and imbalance on the performance of a BB84 time-bin quantum key distribution system. We simulate the impact of interference visibility on system performance and measure the visibility of a pair of interferometers as a function of their relative time delay and intensity imbalance. In addition, our analysis highlights the effect of laser chirp on system performance.

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Loïc Millet, Alberto Boaron, Rob Thew, Gianluca Boso. 2026-07-01. Influence of laser chirp and interferometer delay and imbalance on the performance of a time-bin BB84 quantum key distribution system. https://doi.org/10.1063/5.0280232

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