A secure communication system based on silicon-based microcavity chaos synchronization
A technology of secure communication and chaotic synchronization, which is applied in the field of secure communication systems, can solve problems such as high bit error rate, poor stability, and inconvenient engineering applications, and achieve the effects of low bit error rate, high stability, and high compatibility
Active Publication Date: 2020-07-24
SOUTHWEST UNIV
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Problems solved by technology
[0003] The existing security communication system has poor stability and high bit error rate, which is not convenient for engineering application
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[0025] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present invention, not all of them. the embodiment. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without making creative efforts belong to the protection scope of the present invention.
[0026] Within the field of secure communications, advances have been made in single-photon and related two-photon technologies, including quantum key distribution, measurement-device-independent quantum channels, and high-dimensional Hilbert spaces with high photon information efficiency and spectral density. But in the absence of quantum repeaters and amplifiers, these secure optical communicat...
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Abstract
The invention provides a silicon-based microcavity chaotic synchronization safety communication system, which comprises a transmitting module and a receiving module, and is characterized in that the transmitting module comprises a first optical mechanical microcavity; the receiving module comprises a second optical mechanical microcavity; the two independent pump lasers drive the first optical mechanical microcavity and the second optical mechanical microcavity respectively. The output of the first optical mechanical micro-cavity passes through an optical amplifier and then couples a chaotic signal of the micro-cavity 1 to the micro-cavity 2 through a narrow-band optical fiber, an electro-optical modulator and a single-mode optical fiber in sequence; the driving laser wavelength of the first optical mechanical microcavity is 1539.66 nm, and the driving laser wavelength of the second optical mechanical microcavity is 1539.75 nm; and the coupling strength of the first optical mechanicalmicrocavity and the second optical mechanical microcavity is-8.7 dB. According to the invention, chaotic synchronization with a correlation coefficient as high as 0.97 is realized when the coupling strength is selected to be-8.7 dB. The silicon-based micro-cavity chaotic synchronization safety communication system is good in stability and low in bit error rate.
Description
technical field [0001] The invention belongs to the technical field of communication, and in particular relates to a silicon-based microcavity chaotic synchronization safety communication system. Background technique [0002] Secure communications are the cornerstone of a reliable global space network. The established security, specifically capable of operating outside single-photon current-limited environments, provides a platform for building trusted nodes in continental and intercontinental networks to ensure end-to-end communication, command and control, sensitive data transfer, and security trade. Chaotic synchronization is a long-standing concept in nonlinear dynamics that enables secure communication over long-distance channel links and in scalable modules. [0003] The existing security communication system has poor stability and high bit error rate, which is not convenient for engineering application. Contents of the invention [0004] The invention provides a ...
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IPC IPC(8): H04L9/00H04B10/40
CPCH04B10/40H04L9/001
Inventor 吴加贵石炳磊熊雪艳杨艳灵葛立
Owner SOUTHWEST UNIV