High-dimension chaotic laser secrecy communication system

Abstract

A high-dimension chaotic laser secrecy communication system disclosed by the present invention comprises an emission terminal and a reception terminal, the emission terminal comprises a first tunable laser, a second tunable laser, a first Mach-Zehnder modulator, a first radio frequency amplifier, a first photoelectric detector, a first optical delay line and a first optical fiber coupler, and the reception terminal comprises a third tunable laser, a second Mach-Zehnder modulator, a second optical fiber coupler, a second optical delay line, a second radio frequency amplifier, a second photoelectric detector, a third photoelectric detector, a fourth photoelectric detector and a summator. The high-dimension chaotic laser secrecy communication system of the present invention uses the tunable lasers to generate the chaotic carriers and the load information, by controlling the switching and matching of the wavelengths of the lasers, and on the condition that a third party does not know the wavelengths, enables the information decoding difficulty to be improved substantially, and has the important significance for the enterprises and departments having the secrecy demands, and especially for the national defense information security field.

Description

technical field [0001] The invention belongs to the technical field of secure communication, and in particular relates to a high-dimensional chaotic laser secure communication system. Background technique [0002] Information is an important strategic resource for social development, and the development of modern communication technology is rapidly changing traditional production methods, management methods and lifestyles. From the private communication of every household to the communication of the national military, the receiving and sending of information is ubiquitous. However, with the continuous development and rapid popularization of information technology represented by computer technology and network communication technology, the characteristics of network communication internationalization, socialization, openness and personalization determine that it can provide people with information sharing and provide While human beings bring high efficiency, high benefit and...

AI Technical Summary

Problems solved by technology

[0004] At present, the confidentiality dimension of the chaotic communication system is mainly reflected in the matching of the device parameters of the receiving end and the transmitting end. However, the encryption on the hardware of this device can be said to be static for a period of time, which also makes information theft still possible. occur

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