{"title":"120 Gbit/s PDM-16QAM太赫兹信号，超过850米，使用2 × 2 MIMO链路和先进的dsp。","authors":"Weiping Li, Jianjun Yu, Xianming Zhao, Xin Lu, Yi Wei, Wen Zhou, Min Zhu, Jiao Zhang, Kaihui Wang, Feng Zhao, Jianguo Yu","doi":"10.1364/OL.567762","DOIUrl":null,"url":null,"abstract":"<p><p>The wireless range and data capacity of photonics terahertz (THz) communication systems above 300 GHz are limited by outdoor environmental challenges, including high atmospheric attenuation, water absorption, and efficiency limitations of optical-to-electrical conversion. In this Letter, we have showcased a dual-channel 2 × 2 multiple-input multiple-output (MIMO) system achieving a record 120 Gbit/s polarization-division multiplexing 16-ary quadrature amplitude modulation (PDM-16QAM) signal delivery over a wireless distance of 850 m at 300 GHz based on polarization multiplexing and advanced digital signal processing (DSP) technology. This demonstrates the largest <i>rate-distance</i> (R-D) product of 88,655 Gbit/s*m globally. Our work marks a significant step toward achieving high-capacity (over 100 Gbit/s) long-distance (kilometer-level) THz-wave communication. These research results are expected to serve as a low-cost and basic communication system technology for promising backhaul wireless communications in the 6G era.</p>","PeriodicalId":19540,"journal":{"name":"Optics letters","volume":"50 13","pages":"4482-4485"},"PeriodicalIF":3.3000,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"120 Gbit/s PDM-16QAM terahertz signal over 850 m using 2 × 2 MIMO links and advanced DSPs.\",\"authors\":\"Weiping Li, Jianjun Yu, Xianming Zhao, Xin Lu, Yi Wei, Wen Zhou, Min Zhu, Jiao Zhang, Kaihui Wang, Feng Zhao, Jianguo Yu\",\"doi\":\"10.1364/OL.567762\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p><p>The wireless range and data capacity of photonics terahertz (THz) communication systems above 300 GHz are limited by outdoor environmental challenges, including high atmospheric attenuation, water absorption, and efficiency limitations of optical-to-electrical conversion. In this Letter, we have showcased a dual-channel 2 × 2 multiple-input multiple-output (MIMO) system achieving a record 120 Gbit/s polarization-division multiplexing 16-ary quadrature amplitude modulation (PDM-16QAM) signal delivery over a wireless distance of 850 m at 300 GHz based on polarization multiplexing and advanced digital signal processing (DSP) technology. This demonstrates the largest <i>rate-distance</i> (R-D) product of 88,655 Gbit/s*m globally. Our work marks a significant step toward achieving high-capacity (over 100 Gbit/s) long-distance (kilometer-level) THz-wave communication. These research results are expected to serve as a low-cost and basic communication system technology for promising backhaul wireless communications in the 6G era.</p>\",\"PeriodicalId\":19540,\"journal\":{\"name\":\"Optics letters\",\"volume\":\"50 13\",\"pages\":\"4482-4485\"},\"PeriodicalIF\":3.3000,\"publicationDate\":\"2025-07-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Optics letters\",\"FirstCategoryId\":\"101\",\"ListUrlMain\":\"https://doi.org/10.1364/OL.567762\",\"RegionNum\":2,\"RegionCategory\":\"物理与天体物理\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"OPTICS\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Optics letters","FirstCategoryId":"101","ListUrlMain":"https://doi.org/10.1364/OL.567762","RegionNum":2,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"OPTICS","Score":null,"Total":0}
120 Gbit/s PDM-16QAM terahertz signal over 850 m using 2 × 2 MIMO links and advanced DSPs.
The wireless range and data capacity of photonics terahertz (THz) communication systems above 300 GHz are limited by outdoor environmental challenges, including high atmospheric attenuation, water absorption, and efficiency limitations of optical-to-electrical conversion. In this Letter, we have showcased a dual-channel 2 × 2 multiple-input multiple-output (MIMO) system achieving a record 120 Gbit/s polarization-division multiplexing 16-ary quadrature amplitude modulation (PDM-16QAM) signal delivery over a wireless distance of 850 m at 300 GHz based on polarization multiplexing and advanced digital signal processing (DSP) technology. This demonstrates the largest rate-distance (R-D) product of 88,655 Gbit/s*m globally. Our work marks a significant step toward achieving high-capacity (over 100 Gbit/s) long-distance (kilometer-level) THz-wave communication. These research results are expected to serve as a low-cost and basic communication system technology for promising backhaul wireless communications in the 6G era.
期刊介绍：
The Optical Society (OSA) publishes high-quality, peer-reviewed articles in its portfolio of journals, which serve the full breadth of the optics and photonics community.
Optics Letters offers rapid dissemination of new results in all areas of optics with short, original, peer-reviewed communications. Optics Letters covers the latest research in optical science, including optical measurements, optical components and devices, atmospheric optics, biomedical optics, Fourier optics, integrated optics, optical processing, optoelectronics, lasers, nonlinear optics, optical storage and holography, optical coherence, polarization, quantum electronics, ultrafast optical phenomena, photonic crystals, and fiber optics. Criteria used in determining acceptability of contributions include newsworthiness to a substantial part of the optics community and the effect of rapid publication on the research of others. This journal, published twice each month, is where readers look for the latest discoveries in optics.
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