论文标题
与DWDM光学传输网络集成时，量子键分布系统的理论分析
Theoretical analysis of quantum key distribution systems when integrated with a DWDM optical transport network
论文作者
论文摘要
对自发的拉曼散射，四波混合和线性通道串扰引起的噪声影响的理论研究和数值模拟进行了QKD系统性能。考虑了三种类型的QKD系统：连贯的单向（COW）QKD协议，子载波 - 波（SCW）QKD系统以及与经典DWDM通道集成的连续变量（CV）QKD。我们计算了有关解决不同通道分配方案（即配置）的系统的安全密钥生成率。均匀的DWDM网格被视为电信窗口的量子通道，位于C波段和O带（1310 nm）的量子通道。根据最大可实现的距离值分析系统的性能。最佳选择进一步分析和研究的配置，即它们的最大可实现距离是最好的。
A theoretical research and numerical simulation of the noise influence caused by spontaneous Raman scattering, four-wave mixing, and linear channel crosstalk on the performance of QKD systems was conducted. Three types of QKD systems were considered: coherent one-way (COW) QKD protocol, subcarrier-wave (SCW) QKD system, and continuous-variable (CV) QKD integrated with classical DWDM channels. We calculate the secure key generation rate for the systems mentioned addressing different channel allocation schemes (i.e., configurations). A uniform DWDM grid is considered with quantum channel located in C-band and O-band (at 1310 nm) of a telecommunication window. The systems' performance is analyzed in terms of the maximal achievable distance values. Configurations for the further analysis and investigation are chosen optimally, i.e., their maximal achievable distances are the best.
