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光纤激光器为光纤通信提供了技术支撑,而保密性是人们进行通信的首要要求。为了满足人们对光纤通信安全性的要求,提出了混沌系统和光纤激光器的保密通信系统。首先分析了光纤激光器的工作原理以及优点,然后根据混沌系统对初始值敏感的特性,将混沌系统引入到光纤激光器的通信过程中,将通信的信号隐藏于混沌序列中,使非法者难以解码和窃取有用信号,最后通过模拟实验分析光纤激光器的保密通信性能。结果表明,该保密通信系统可以保证光纤通信的保密性,反破译性能优异,可以应用于实际保密通信中。
Fiber lasers provide technical support for fiber optic communications, and privacy is the primary requirement for people to communicate. In order to meet people’s requirements for optical fiber communication security, a confidential communication system of chaos system and fiber laser is proposed. Firstly, the working principle and the advantages of the fiber laser are analyzed. Then, the chaotic system is introduced into the communication process of the fiber laser according to the sensitivity to the initial value of the chaotic system. The communication signal is hidden in the chaotic sequence, making it difficult for the unlawful to decode Steal the useful signal, and finally analyze the confidential communication performance of fiber laser by simulation experiment. The results show that the secure communication system can ensure the confidentiality of optical fiber communication and has excellent anti-deciphering performance and can be used in practical secure communication.