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A multi-dimensional multiplexing photonic terahertz communication system

A communication system and terahertz technology, applied in the field of photonic terahertz communication systems, can solve the problems of low system flexibility, complex system structure, low data transmission rate, etc., and achieve flexible and configurable system structure, simple system structure, and spectral efficiency. high effect

Active Publication Date: 2021-11-19
ZHEJIANG UNIV
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AI Technical Summary

Problems solved by technology

However, the structure of this system is relatively complex, requiring more external cavity lasers and optical filters, the data processing algorithm is more complicated, and the system flexibility is low
In addition, because the system only uses space division multiplexing, the data transmission rate is low

Method used

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  • A multi-dimensional multiplexing photonic terahertz communication system

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Embodiment Construction

[0031] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, and do not limit the protection scope of the present invention.

[0032] figure 1 It is a schematic structural diagram of the multi-dimensional multiplexing photonic terahertz communication system provided by the embodiment. Such as figure 1 As shown, the photonic terahertz communication system includes an optical frequency comb generation module, a wavelength division multiplexing module, a signal modulation module, an optical branching module, a space division multiplexing fan-in module, a multi-core optical fiber, a space division multiplexing A fan-out module, multiple terahertz signal transmitting modules, multiple terahertz pri...

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Abstract

The invention discloses a multi-dimensional multiplexing photonic terahertz communication system, which comprises an optical frequency comb generation module, a wavelength division multiplexing module, a signal modulation module, an optical branching module, a space division multiplexing fan-in module, a multiple Core fiber, space division multiplexing fan-out module, terahertz signal transmitting module, terahertz prism, terahertz signal receiving and demodulating module. The invention adopts an optical frequency comb generation module to generate an optical frequency comb with wide band and flat power distribution, and simultaneously transmits multiple optical signals through a space division multiplexing fan-in and fan-out module and a multi-core optical fiber. The invention combines multiple multiplexing technologies with the photonic terahertz wireless communication system. The system can adjust the number of carriers through the wavelength division multiplexing module, and adjust the number of branches through the space division multiplexing module, which can realize Tbit / s level The data transmission rate is high, the system capacity can be flexibly configured, the structure is simple, and the spectrum efficiency is high.

Description

technical field [0001] The invention belongs to the field of wireless communication, and in particular relates to a multi-dimensional multiplexing photonic terahertz communication system. Background technique [0002] With the rapid development of the Internet industry and the increase in the number of wireless terminal users, the traffic demand for wireless services has increased dramatically. Over the past few years, wireless data traffic has experienced unprecedented growth. To meet the wide-bandwidth requirements of future communications, new frequency resources need to be explored, such as millimeter-wave / terahertz wireless communications and optical wireless communications. Among them, the terahertz frequency band (0.1–10 THz) is a promising technology choice, which not only meets the bandwidth requirements, but also has high resolution, short operating wavelength, and rich spectrum resources. In addition, compared with millimeter waves, terahertz waves have shorter ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04B10/70H04J14/02H04B10/90
CPCH04B10/70H04B10/90H04J14/02H04J14/0227
Inventor 张红旗张鹿余显斌
Owner ZHEJIANG UNIV
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