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Full photon-utilization via frequency-multiplexed time-polarization encoding for photon-efficient quantum key distribution network

Kai Yang, Tianyi Wu, Huadong Zhang, Yujie Chen, Murat Can Sarihan, Kai-Chi Chang, Xinliang Zhang, Yu Yu, Chee Wei Wong, Xiang Cheng

Published Jan 1, 2026• 0 citations
Publisher

Abstract

We explore photon’s full information capacity via exploiting time, frequency, and polarization degrees of freedom, with high photon information efficiency over 7 bits per coincidence, providing a scalable architecture for photon-efficient quantum networking.
DOI
10.1364/cleo_fs.2026.fm4c.7

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