半导体激光器混沌方式研究

激光混沌保密通信是近年来新兴的一个领域,它通常利用半导体激光器产生混沌,再将传输信号隐藏于混沌信号中,从而达到保密通信的目的。由于每个学者方式取向不同从而衍生出多种产生混沌的方式,本文参考大量文献,综合各种常用方式,将产生混沌的方式进行系统分类。首先分为反馈混沌和注入混沌；其中把反馈型混沌按反馈物质的不同又分为光反馈混沌和光电反馈混沌,而光反馈又有两种类型:反馈相干光和反馈非相干光,最近,更有学者在此基础上提出了双光反馈；然后分别阐述各种混沌类型的系统模型、理论模型及优缺点,将这个新兴领域的理论系统化、完整化。

Research on chaos in semiconductor lasers

Laser chaotic secure communication has been a new field in recent years.It usually uses semiconductor lasers to generate chaos,then hides the transmission signals in the chaos to achieve the purpose of secret communication.As there are many chaotic ways,the chaotic ways are classified based on a large amount of literature,including feedback chaos and injected chaos.According to different feedback materials,the feedback chaos is divide into optical feedback and optoelectronic feedback.The system model,theoretical model,advantages and disadvantages of various chaotic types are respectively expounded,which makes the theory of the emerging field systematic and complete.