量子电子学报 ›› 2023, Vol. 40 ›› Issue (4): 423-435.doi: 10.3969/j.issn.1007-5461.2023.04.001

• 综述 •    下一篇

光子辅助太赫兹通信技术研究进展

李小军* , 王迪 , 龚静文   

  1. ( 中国空间技术研究院西安分院空间微波技术国家级重点实验室, 陕西 西安 710100 )
  • 收稿日期:2021-05-12 修回日期:2021-06-28 出版日期:2023-07-28 发布日期:2023-07-28
  • 通讯作者: lxjzhx1@163.com E-mail:lxjzhx1@163.com
  • 作者简介:李小军 ( 1971 - ), 陕西西安人, 博士, 研究员, 硕士生导师, 主要从事卫星通信方面的研究。E-mail: lxjzhxl@163.com
  • 基金资助:
    科技部重点研发项目 (2018YFB1801505), 重点实验室基金项目 (6142411205205)

Research Progress of Photonics-Assisted Terahertz Communications

LI Xiaojun *, WANG Di , GONG Jingwen   

  1. ( National Key Laboratory of Science and Technology on Space Microwave, China Academy of Space Technology-Xi'an, Xi'an 710100, China )
  • Received:2021-05-12 Revised:2021-06-28 Published:2023-07-28 Online:2023-07-28

摘要: 面对互联网时代呈指数增长的全球数据流量, 超高速通信的发展需求日益迫切, 太赫兹通信因拥有巨大的可用 带宽资源, 成为下一代超高速无线通信关键技术之一。太赫兹通信系统分为电子学与光子辅助两种类型, 其中后者在通 信速率、频率灵活调控、与光纤接入网无缝融合等方面具有独特优势。首先介绍了典型光子辅助太赫兹通信系统的基本 原理, 在此基本原理框架下, 梳理了系统中信号生成与接收、多维复用以及概率整形等技术的研究进展, 并探讨了该类通 信系统需要进一步解决的问题。

关键词: 光通信, 太赫兹通信, 光子辅助, 信号生成与处理, 多维复用, 概率整形

Abstract: With the exponential growth of global data traffic in the internet era, the demand of ultra-highspeed communications is becoming increasingly urgent. Because of its huge available bandwidth resources, terahertz communication has become one of the key technical approaches for the next generation of ultra-highspeed wireless communications. Terahertz communication systems can be divided into two types: the systems based on electronics technology and those based on photonics-assisted technology. The latter has some unique advantages, such as high communication rate, flexible frequency tunability, and seamless integration with optical fiber access networks. The basic principles of typical photonics-assisted terahertz communication systems are introduced firstly. Then, under these basic principles, the research progresses of signal generation and reception, multi-dimensional multiplexing and probabilistic constellation shaping in the systems are reviewed. Finally, the developing problems need to be solved in the photonics-assisted terahertz communication system are discussed.

Key words: optical communication, terahertz communication, photonics-assisted, signal generation and reception, multi-dimensional multiplexing, probabilistic constellation shaping

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