Keywords: 
• 半导体激光器 /
• 单向耦合 /
• 混沌通信

Abstract: Using a semiconductor laser with double optical feedback as a chaos transmitter,a unidirectional chaotic synchronization communication system is constructed,and the performances of such a system are investigated numerically.The results show that by selecting reasonable parameters,the time delay behaviour of chaotic carrier generated by the semiconductor laser with double optical feedback can be suppressed efficiently;through the strong injection from transmitter to receiver,the perfect synchronization between transmitter and receiver can be realized,and the synchronization quality has a high tolerance to frequency detuning between transmitted laser and received laser;under the additive chaos modulation encryption scheme,the 500 Mbits/s encoded message can be hidden efficiently in the chaotic carrier and successfully extracted at the receiver.