期刊
IEEE WIRELESS COMMUNICATIONS
卷 28, 期 5, 页码 185-191出版社
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/MWC.001.2100002
关键词
Optical transmitters; Optical noise; Optical receivers; Optical mixing; Photonics; Stimulated emission; Optical modulation
类别
资金
- Electronics and Telecommunications Research Institute (ETRI) - Korean government [21ZH1100]
- Institute for Information & Communication Technology Planning & Evaluation (IITP), Republic of Korea [21ZH1100] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
The paper comprehensively analyzes and compares various potential THz communications systems with a focus on photonics-based THz transmitters. The research indicates that optical and phase noise have a significant impact on system performance.
Large bandwidths at terahertz (THz) frequencies higher than 100 GHz have been garnering significant attention as key enablers for future wireless networks to provide data rates in the range of terabits per second, which is approximately one hundred times higher than the transmission rate of millimeter wireless systems. To fully utilize the merits of THz frequencies, devices with large operating bandwidths are highly desired. From this perspective, promising choices are photonic devices developed for fiber-optic communications, which have been commonly used since the early stages of THz communications research with different architectures and parameters. However, the factors limiting the performance of photonics-based THz systems have not yet been investigated thoroughly in terms of general system aspects. Here, we comprehensively analyze and compare various potential THz communications systems with a photonics-based THz transmitter. Based on modulation and optical light sources, we characterize the three most typical architectures and theoretically and experimentally analyze the impact of optical and phase noise on system performance.
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