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Entire space-time quantum and laser communication system

A laser communication and quantum technology, applied in photon quantum communication, secure communication device, optical multiplexing system, etc., to achieve the effect of simplifying the structure, increasing the communication capacity, and increasing the transmission rate

Active Publication Date: 2019-01-04
XIAN INSTITUE OF SPACE RADIO TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The problem to be solved by the technology of the present invention is: to overcome the deficiencies of the prior art, to provide a full-time-space quantum and laser communication system, to solve the problem of simultaneous rapid transmission of classical laser communication and quantum communication in different channels in free space, and to realize full-time-space quantum and laser communication laser communication

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  • Entire space-time quantum and laser communication system
  • Entire space-time quantum and laser communication system
  • Entire space-time quantum and laser communication system

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Embodiment Construction

[0022] The specific embodiments of the present invention will be further described below in conjunction with the accompanying drawings.

[0023] Based on the existing technology, the present invention overcomes the deficiencies of the existing technology by researching and tackling key problems, and provides a full-time and space-time quantum and laser communication system for the shared communication load of quantum and laser between satellites, satellites, and earth-earth. With the goal of improving the communication rate and communication capacity of free space quantum key distribution, wavelength division multiplexing (WDM) technology is used to increase the transmission rate of information and expand the capacity of the channel, so as to promote the realization of all-day global quantum communication. The first-level wavelength division multiplexing of n channels of 1550nm quantum signals and the first-level wavelength division multiplexing of n channels of 1310nm classica...

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Abstract

The invention discloses an entire space-time quantum and laser communication system. First-order wavelength division multiplexing of n channels of quantum signals and first-order wavelength division multiplexing of n channels of classical laser signals are realized through a dense wavelength division multiplexing device. Finally, second-order wavelength division multiplexing of quantum signals, classical signals and clock signals (synchronous optical signals) is realized through a sparse wavelength division multiplexing device, and the problem about fast simultaneous transmission of classicallaser communication and quantum communication in different channels in a free space is solved. The communication capacity of a free space in the quantum key distribution process is improved. The multiplexing of classical channels and quantum channels is realized. The capacity of channels is expanded. The transmission rate is improved. Entire space-time large-capacity quantum and laser communication is realized.

Description

technical field [0001] The invention relates to an all-time, all-round quantum and laser communication multiplexing system, which belongs to the field of quantum communication and laser communication. Background technique [0002] Satellite-ground, inter-satellite quantum and laser communication technology is currently a hot topic in international research. China's "Mozi" quantum scientific research satellite has successfully launched and obtained the data returned by the satellite. This is a first-time satellite-ground quantum communication. A major breakthrough, which lays the foundation for the realization of global quantum communication. The Max Planck Institute of Optics in Germany optimizes the performance of quantum communication on the basis of ensuring the rate of classical laser communication. The laser communication terminal and ground station of the Alphasat satellite are expected to use the same terminal for classical laser communication and quantum communicatio...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B10/70H04B10/118H04J14/02H04L9/08
CPCH04B10/118H04B10/70H04J14/0202H04J14/0209H04L9/0852H04L9/0858
Inventor 刁文婷蔡春晓杨文海王留军宋学瑞张文睿郭精忠
Owner XIAN INSTITUE OF SPACE RADIO TECH