Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Four-channel ultra-high-speed bidirectional OTDM secret communication system

A secure communication, ultra-high-speed technology, applied in the direction of secure communication through chaotic signals, transmission system, optical transmission system, etc., can solve problems such as difficult to achieve multi-channel OTDM chaotic secure communication

Pending Publication Date: 2020-11-20
WUYI UNIV
View PDF0 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in these schemes, although chaotic synchronization can be achieved with equal forward and backward propagation delays, due to the asymmetry between the two MCSLs, the realization of chaotic synchronization faces new challenges. challenge
More importantly, in conventional lasers coupled with each other, it is difficult to achieve multi-channel OTDM chaotic secure communication due to its dynamic characteristics on the order of nanoseconds

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
  • Four-channel ultra-high-speed bidirectional OTDM secret communication system
  • Four-channel ultra-high-speed bidirectional OTDM secret communication system
  • Four-channel ultra-high-speed bidirectional OTDM secret communication system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0034] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative efforts fall within the protection scope of the present invention.

[0035] The terms "first", "second" and the like in the description and claims of the present invention and the above drawings are used to distinguish similar objects, and are not necessarily used to describe a specific sequence or sequence. It is to be understood that the terms so used are interchangeable under appropriate circumstances such that the embodiments described herein can be practiced in sequences other than those illustrated or described herein. Furthermore, the te...

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 discloses a four-channel ultra-high-speed bidirectional OTDM secret communication system, which comprises two optical fiber generation and wave division modules, two multiplexing delay modulation modules and two optical fiber beam splitting modulation modules. According to the embodiment of the invention, external light injection is carried out on the two spinning VCSELs, chaotic synchronization between the two spinning VCSELs is realized, and asymmetry of the two spinning VCSELs is caused by uneven propagation delay, so that the asymmetry is eliminated to a great extent by injecting elliptically polarized light into the two spinning VCSELs. By further optimizing parameters, high-quality in-phase and anti-phase lead / lag chaotic synchronization is realized, and four-channel ultra-high-speed bidirectional OTDM secret communication is realized.

Description

technical field [0001] The invention relates to the technical field of secure communication, in particular to a four-channel ultra-high-speed bidirectional OTDM secure communication system. Background technique [0002] Optically pumped spin-polarized vertical-cavity surface-emitting lasers (spin-VCSELs) with low threshold, independent control of output polarization state and intensity, ultrafast kinetics, and large modulation bandwidth (about 200 GHz) Etc. Taking advantage of these properties, optically pumped spin VCSELs have new application prospects in the fields of optical communication, optical information processing, data storage, quantum computing, and biochemical sensing. Various forms of ultrafast instability can be observed in optically pumped spin VCSELs, including periodic oscillations, polarization inversions, and chaotic dynamical behaviors. The chaotic dynamics of optically pumped spin VCSEL has potential important application value in ultrafast optical cha...

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): H04L9/00H04B10/85H04B10/516
CPCH04L9/001H04B10/85H04B10/516
Inventor 钟东洲曾能杨华徐喆
Owner WUYI UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com