A secure optical fiber communication system
An optical fiber communication system, laser technology, applied in the direction of optical transmission system, secure communication through chaotic signal, transmission system, etc., can solve the problem of inability to guarantee communication security, and achieve the effect of improving security
Active Publication Date: 2020-04-21
UNIV OF ELECTRONICS SCI & TECH OF CHINA
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However, such systems cannot guarantee the security of communication if the key is intercepted
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[0036] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.
[0037] The purpose of the present invention is to provide a secure optical fiber communication system, which generates synchronized analog chaotic optical signals at the transmitting end and the receiving end as the synchronization encryption and decryption signal of the high-speed optical fiber communication system, which belongs to the signal domain encryption; The receiving end generates a synchronized encryption signal and a decryptio...
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The invention discloses a secret optical fiber communication system. In the system, a signal output end of a signal sending end is connected with a signal input end of a sending end encryption module;a signal output end of the sending end encryption module is connected with a signal input end of a receiving end decryption module via an optical fiber link; a signal output end of the receiving enddecryption module is connected with a signal receiving end; a signal output end of an initial chaos laser generation device is respectively connected with signal input ends of a sending end chaos laser generation device and a receiving end chaos laser generation device; a signal output end of the sending end chaos laser generation device is connected with a control signal input end of the sendingend encryption module via a sending end photoelectric detector; and a signal output end of the receiving end chaos laser generation device is connected with a control signal input end of a receiving end description module via a receiving end photoelectric detector. According to the secret optical fiber communication system, synchronous encryption signal and decryption signal can be generated by the signal sending end and the signal receiving end, so that a stealer cannot crack a system structure even through the stealer knows the system structure.
Description
Technical field [0001] The present invention relates to the technical field of secure communication and optical fiber communication, in particular to a secure optical fiber communication system. Background technique [0002] With the development of communication network technology, people have higher and higher requirements for the transmission rate of communication systems. At the same time, the security of information in the communication system has also attracted the attention of all countries in the world. How to achieve high-speed and secure communication has become a hot topic in recent years. [0003] The chaotic signal has a noise-like waveform. If the information is hidden in the chaotic signal, the confidentiality of the information can be improved. Therefore, the research on chaotic optical communication has been very active in recent years and has become an important branch in the research of secure optical fiber communication. In the process of secure optical fiber com...
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IPC IPC(8): H04L9/12H04L9/00H04B10/85
CPCH04B10/85H04L9/001H04L9/12
Inventor 江宁王慧赵安可邱昆
Owner UNIV OF ELECTRONICS SCI & TECH OF CHINA