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A bidirectional long-distance secure communication system based on silicon photon chaotic synchronization

A technology of chaotic synchronization and secure communication, applied in the field of optoelectronics, can solve problems such as unfavorable and convenient use, and achieve the effect of solving miniaturization, ensuring stability and reducing costs

Inactive Publication Date: 2019-05-10
SOUTHWEST UNIVERSITY
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Problems solved by technology

[0005] Because the generation device of the traditional laser security communication system is too large, it is not conducive to convenient use

Method used

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  • A bidirectional long-distance secure communication system based on silicon photon chaotic synchronization
  • A bidirectional long-distance secure communication system based on silicon photon chaotic synchronization
  • A bidirectional long-distance secure communication system based on silicon photon chaotic synchronization

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Embodiment Construction

[0021] Working principle of the present invention: based on the nonlinear dynamics of the silicon photon chaotic source, the present invention uses light injection differential equations for numerical simulation, and the four equations represent the optical field, dynamic displacement, and free carrier density of the silicon photon cavity respectively As well as the temperature change in the cavity, the characteristic of light injection is the intensity of the light field in the cavity; for the setting of the parameters of the main silicon photon and the slave silicon photon, the main parameter difference is the injection of optical power. In the main silicon photon cavity, the injection The optical power is 1*10 -3 , and the injection of optical power from the two slave silicon photonic cavity is the sum of the basic optical power input and the optical field intensity of the main silicon photon. Through the fourth-order Runge-Kutta differential equation, the driving chaotic s...

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Abstract

The invention provides a bidirectional long-distance secure communication system based on silicon photon chaotic synchronization. the main silicon photonic chip generates a chaotic driving signal; thechaotic driving signal is amplified by an amplifier, passes through a first polarized light beam splitter and is equally divided into two same light beams; the light beams are transmitted through a first long distance optical fiber and a second long-distance optical fiber; a first slave silicon photonic chip and a second slave silicon photonic chip which are symmetrical are injected at the sametime; Chaos generated by the master silicon photonic chip serve as seed signals to drive the first slave silicon photonic chip and the second slave silicon photonic chip to achieve chaotic synchronization, information is added into the two synchronous slave silicon photonic chips respectively, and bidirectional information communication is conducted. According to the invention, bidirectional long-distance chaotic secure communication can be realized.

Description

technical field [0001] The invention relates to the field of optoelectronics, in particular to a two-way long-distance secure communication system based on silicon photon chaos synchronization. Background technique [0002] Human beings are currently in the era of rapid development of electronic information, the ways of information transmission are ever-changing, and the application fields are ubiquitous, so the completion of communication and the issue of confidentiality are very important. How to realize confidential communication with high safety factor and high efficiency has become the focus of current society. The secure communication technology based on chaotic laser is of great significance for high-efficiency, high-bandwidth, high-speed secure communication. [0003] Chaos has always been a hot topic, and communication based on chaos synchronization has been widely used in technology and real life. The so-called synchronization generally means that the orbit of on...

Claims

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Application Information

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IPC IPC(8): H04L9/00H04B10/70
Inventor 吴加贵牛永姣郭鹏飞罗词伟韩晶慜黄苾荍
Owner SOUTHWEST UNIVERSITY
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