Wavelength-hopping chaotic secure communication method and system based on multi-mode lasers

A technology of wavelength hopping and secure communication, which is applied in the direction of optical transmission system, etc., can solve the problem that wavelength hopping secure communication is rare, and achieve the effect of improving the capacity of secure communication, improving confidentiality, and improving parallel transmission capabilities

Active Publication Date: 2014-09-24
UNIV OF ELECTRONICS SCI & TECH OF CHINA
View PDF5 Cites 19 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the laser chaos security communication systems reported so far all use single-mode lasers, and the information transmission is always kept on one wavelength.
There is a flaw in this: in the case of low transmission rate, the stealer may filter out information from the channel with a wavelength-matched filter or tuned filter...

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Wavelength-hopping chaotic secure communication method and system based on multi-mode lasers
  • Wavelength-hopping chaotic secure communication method and system based on multi-mode lasers
  • Wavelength-hopping chaotic secure communication method and system based on multi-mode lasers

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0041] The invention will be further described below in conjunction with the drawings.

[0042] Such as figure 1 As mentioned, the wavelength hopping chaotic secure communication system based on multimode lasers proposed by the present invention includes external cavity multimode semiconductor laser D-MSL at the driving end, bidirectionally coupled multimode lasers MSL1 and MSL2, optical modulator MOD, light wave Demultiplexer WDM, optical fiber, photodetector PD, optical coupler OC, optical isolator OI, optical circulator, electrical delay line DL, information processing module.

[0043] The information processing module is used to combine the original information M i1 , M i2 ,..., M in (n≥2, i=1 means MSL1 end, i=2 means MSL2 end) Split and integrate according to the wavelength hopping scheme, and output the actual transmission information of each wavelength channel m i1 (t), m i2 (t), …, m in (t); On the other hand, it will also receive the information m'decrypted by the rece...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention provides a wavelength-hopping chaotic secure communication method and system based on multi-mode lasers and belongs to the field of secure communication. The system comprises a driving end and two two-way-coupled sending/receiving ends. The same external chaotic optical injection signals are provided for the sending/receiving ends through the driving end, so that chaotic synchronization of each mode of the multi-mode lasers of the sending/receiving ends is achieved, information is loaded into chaotic carrier waves of different modes of the lasers of the sending/receiving ends in different time slots, and two-way wavelength-hopping transmission of the information is realized. The method and the system utilize the enhanced information security features of chaotic communication technology and wavelength-hopping technology at the same time, can improve the physical-layer information transmission security, and is applicable to high-security communication services. Meanwhile, as the method and the system achieve multi-wavelength chaotic synchronization based on the multi-mode lasers, and the information secure transmission capacity of the system can be improved.

Description

Technical field [0001] The invention belongs to the field of secure communication, and in particular relates to a method and system for wavelength hopping chaotic secure communication based on a multimode laser. Background technique [0002] With the explosive growth of network capacity and users, people pay more and more attention to information confidentiality. my country’s “Twelfth Five-Year Plan for the Communications Industry” promulgated in 2012 clearly listed information security as a development during the “Twelfth Five-Year” period. One of the key points. In the current application and research, people mainly use traditional information encryption at the media access control layer to improve the security of the communication system, but there is little research on the security of the most vulnerable physical layer. Therefore, realizing the confidential transmission of information at the physical layer is of great significance to improving the confidentiality of the commu...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): H04B10/85
Inventor 江宁邱昆薛琛鹏
Owner UNIV OF ELECTRONICS SCI & TECH OF CHINA
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap