Performance Analysis on Co-Existence of COW-QKD and Classical DWDM Channels Transmission in UK National Quantum Networks
Performance Analysis on Co-Existence of COW-QKD and Classical DWDM Channels Transmission in UK National Quantum Networks
复制标题
DOI：
10.1109/jlt.2023.3246175
复制
发表时间：
2023-08
影响因子：
4.7
通讯作者：
Xiao-Jiao Duan;J. Pearse;A. Wonfor;C. White;A. Bahrami;A. Straw;Tim Edwards;R. Penty;Andrew Lord;Rupesh Kumar;Tim Spiller
中科院分区：
文献类型：
--
作者：
Xiao-Jiao Duan;J. Pearse;A. Wonfor;C. White;A. Bahrami;A. Straw;Tim Edwards;R. Penty;Andrew Lord;Rupesh Kumar;Tim Spiller
分析和评估英国某公司的物理层性能。在英国电信实验室和剑桥大学之间的121 km的国家量子网络（UKQNtel）中，利用COW-QKD，在O波段，与500 Gb/s加密数据集成，在C波段，建立了包含COW-QKD和拉曼散射噪声的理论模型，并与真实世界的实验数据拟合。不同的物理机制支撑的链路性能进行了识别和讨论。在这项工作中开发的模型还为未来的UKQNtel升级和扩展提供了初步的技术指导，以及在实际部署之前对量子安全网络设计的潜在有用见解。
To analyse and evaluate the physical layer performance of a U.K. national quantum network (UKQNtel) utilising COW-QKD, in O band, integrated with 500 Gb/s encrypted data, in C band, over 121 km between BT Labs and the University of Cambridge, a theoretical model encompassing COW-QKD and Raman scattering noise is developed and fitted with real-world experimental data. Different physical mechanisms underpinning the link performance are identified and discussed. The model developed in this work also provides a preliminary technical guidance for future UKQNtel upgrade and expansion, as well as potentially useful insights for quantum-secured networks design prior to practical deployment.