Chinese Journal of Quantum Electronics, Volume. 40, Issue 4, 423(2023)
Research progress of photonics⁃assisted terahertz communications
With the exponential growth of global data traffic in the internet era, the demand of ultra-high-speed 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-high-speed 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.
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Xiaojun LI, Di WANG, Jingwen GONG. Research progress of photonics⁃assisted terahertz communications[J]. Chinese Journal of Quantum Electronics, 2023, 40(4): 423
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Received: May. 12, 2021
Accepted: --
Published Online: Aug. 22, 2023
The Author Email: LI Xiaojun (lxjzhxl@163.com)