{"title":"Dual Carrier Modulation 300 GHz DSM Terahertz Wave Signals Transmitted via Hollow-Core Fiber","authors":"Xiongwei Yang;Jianjun Yu;Xianming Zhao;Jingwen Tan;Yi Wei;Jiaxuan Liu;Feng Zhao;Kaihui Wang;Wen Zhou","doi":"10.1109/LPT.2024.3473913","DOIUrl":null,"url":null,"abstract":"We experimentally demonstrated the transmission of 300 GHz Delta-sigma Modulation (DSM) signals over Hollow-core fibers (HCF) and 2 m wireless links. By using dual-carrier modulation, we effectively improve the signal-to-noise ratio of the generated terahertz signal. At the same time, through HCF, we have successfully solved the problem of wavelength walk-off of optical terahertz (THz) signals caused by chromatic dispersion (CD) when transmitted in fiber links, and successfully demonstrated the transmission of a 24 Gbaud OOK-DSM signal over 2 km of HCF and 2 m of wireless links. The demonstration system supports mobile fronthaul (MFH) of 1024 QAM. At the same time, HCF is more suitable for delay-sensitive fronthaul links due to its low transmission delay characteristics. Therefore, the demonstrated system provides a promising scheme for MFH in areas where fiber is difficult to deploy.","PeriodicalId":13065,"journal":{"name":"IEEE Photonics Technology Letters","volume":"36 24","pages":"1433-1436"},"PeriodicalIF":2.3000,"publicationDate":"2024-10-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"IEEE Photonics Technology Letters","FirstCategoryId":"5","ListUrlMain":"https://ieeexplore.ieee.org/document/10738853/","RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"ENGINEERING, ELECTRICAL & ELECTRONIC","Score":null,"Total":0}
引用次数: 0
Abstract
We experimentally demonstrated the transmission of 300 GHz Delta-sigma Modulation (DSM) signals over Hollow-core fibers (HCF) and 2 m wireless links. By using dual-carrier modulation, we effectively improve the signal-to-noise ratio of the generated terahertz signal. At the same time, through HCF, we have successfully solved the problem of wavelength walk-off of optical terahertz (THz) signals caused by chromatic dispersion (CD) when transmitted in fiber links, and successfully demonstrated the transmission of a 24 Gbaud OOK-DSM signal over 2 km of HCF and 2 m of wireless links. The demonstration system supports mobile fronthaul (MFH) of 1024 QAM. At the same time, HCF is more suitable for delay-sensitive fronthaul links due to its low transmission delay characteristics. Therefore, the demonstrated system provides a promising scheme for MFH in areas where fiber is difficult to deploy.
期刊介绍：
IEEE Photonics Technology Letters addresses all aspects of the IEEE Photonics Society Constitutional Field of Interest with emphasis on photonic/lightwave components and applications, laser physics and systems and laser/electro-optics technology. Examples of subject areas for the above areas of concentration are integrated optic and optoelectronic devices, high-power laser arrays (e.g. diode, CO2), free electron lasers, solid, state lasers, laser materials'' interactions and femtosecond laser techniques. The letters journal publishes engineering, applied physics and physics oriented papers. Emphasis is on rapid publication of timely manuscripts. A goal is to provide a focal point of quality engineering-oriented papers in the electro-optics field not found in other rapid-publication journals.
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