论文部分内容阅读
通过耦合激光混沌相位控制同步系统和光纤信道 ,提出外部光注入半导体激光器激光混沌相位控制光纤同步以及混沌相位相移键控外调制光纤保密通信系统理论模型 ,数值实现了在相位控制器控制下的远程光纤混沌同步 .理论分析了光纤自相位调制对混沌信号以及对同步的影响 ,导出了光纤混沌最大传输距离公式 .通过连续键控调制相位控制器实现了光纤激光混沌相位相移键控编码调制发射 ,设置接收系统相位控制器控制激光相位相移实现了光纤激光混沌同步解调 .数值模拟了具有比特率 5 0Mbit s远程光纤混沌数字编码通信系统的应用 ,详细地进行了在远距离光纤传输中的系统参数失配以及系统抗噪声能力的数值分析 .
By coupling the laser chaos phase control synchronization system and the fiber channel, a theoretical model of optical fiber confidential communication system with external light injection laser diode laser chaos phase control fiber synchronization and chaos phase shift keying modulation is put forward. Numerical control is realized under the control of phase controller Long-distance optical fiber chaos synchronization.Finally, the influence of optical fiber self-phase modulation on chaotic signal and its synchronization is analyzed, and the formula of the maximum transmission distance of optical fiber chaos is deduced.The fiber laser chaotic phase shift keying modulation And the phase place shift of laser phase is controlled by the receiving system phase controller to realize the fiber laser chaos synchronous demodulation.The application of the remote optical fiber chaotic digital code communication system with bitrate of 500Mbit is numerically simulated and carried out in detail in long distance optical fiber transmission In the system parameter mismatch and numerical analysis of anti-noise ability of the system.