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针对双信道偏振复用保密通信系统,利用线性电光效应,提出了一种新的完全混沌同步的控制方案.在该方案中,每一个线性偏振模的完全混沌同步质量随外加电场成准周期性变化.其变化规律:完全混沌同步?剧烈振荡;固定一定的外加电场,电光调制促使其完全混沌同步质量对偏置电流和反馈强度的稳健性获得极大的加强.在较大的偏置电流和反馈强度范围内,每一个线性偏振模能够实现完全混沌同步,并且调制到每一个线性偏振模的加密信号基本上能够恢复.
Aiming at the double-channel polarization multiplexed secure communication system, a new control scheme of complete chaos synchronization is proposed by using the linear electro-optic effect.In this scheme, the perfect chaotic synchronization quality of each linear polarization mode is quasi-periodic with the applied electric field Changes: the law of chaos: perfect chaos synchronization and severe oscillation; the stability of the bias current and feedback strength is greatly enhanced by the constant chaotic synchronization of a fixed constant electric field and electro-optical modulation, And the feedback intensity, each linear polarization mode can achieve complete chaos synchronization, and the encrypted signal modulated to each linear polarization mode can be basically recovered.