Energy-time entanglement coexisting with fiber-optical communication in the telecom C band
Yunru Fan, Yue Luo, Zi-Chang Zhang, Yunbo Li, Sheng Liu, Dong Wang, Dechao Zhang, Guangwei Deng, You Wang, Hai‐Zhi Song, Zhen Wang, Lixing You, Chenzhi Yuan, Guang‐Can Guo, Qiang Zhou · Physical Review A · 2023
The authors study the coexistence of quantum entanglement with fiber optical communication at the telecom $C$ band. The performance of quantum key distribution based on distributed energy-time entanglement coexisting with classical light is characterized, which paves the way for developing a cost-effective quantum entanglement network compatible with fiber communications.