International Conference on Optical Communications and Networks (ICOCN)
Secure Coherent Optical Communication System Based on Dual-Loop Electro-Optic Feedback Phase Encryption
Xinyi Li, Jiaxi Feng, Zhuolin Wen, Yuehua An, Xinyong Dong, Zhensen Gao
Abstract
We propose and demonstrate a novel security-enhanced coherent optical communication system based on dual-loop electro-optic feedback phase encryption, thereby successfully transmitting a 56 Gb/s quadrature phase shift keying (QPSK) signal over a distance of 100 km. Simulation results show that the encryption device effectively suppresses the time delay signature (TDS) and significantly enhances the security of the system.