Wavelength-Multiplexed Multi-User Quantum Network Based on High-Dimensional Time-bin Encoding
Murat Can Sarihan, Xiang Cheng, Kai-Chi Chang, Chee Wei Wong · 2023
We have developed a multi-user QKD network using wavelength multiplexing and high-dimensional arrival-time encoding. We have demonstrated an order of magnitude key rate improvement against recent implementations with >1 bits/photon efficiency.