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Conferences > OFC > 2023 > Th3J > Th3J.3

MDI-QKD with resource-efficient polarization compensation

Olinka Bedroya, Chenyang Li, Wenyuan Wang, Jianyong Hu, Hoi-Kwong Lo, and Li Qian

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Abstract

We implemented MDI-QKD with a novel polarization compensation scheme using discarded bits without reducing the key-sharing cycle or demanding additional resources. Polarization drift was maintained below 0.13 rad over a 40 km unisolated fibre spool for four hours, and the average secret key rate generated was 7.45 ×10−6 bits per pulse.

© 2023 The Author(s)

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