Ultrahigh-Bitrate Wireless Data Communications via THz-Links; Possibilities and Challenges

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• 作者：Thomas Schneider
• 关键词：Terahertz ; THz ; sources ; THz ; communications ; Nonlinear optics ; stimulated Brilloiun scattering
• 刊名：International Journal of Infrared and Millimeter Waves
• 出版年：2015
• 出版时间：February 2015
• 年：2015
• 卷：36
• 期：2
• 页码：159-179
• 全文大小：2,650 KB
• 参考文献：1. Cisco Visual Networking Forecast and Methodology: 2012 -2017; http://www.cisco.com/c/en/us/solutions/collateral/service-provider/ip-ngn-ip-next-generation-network/white_paper_c11-481360.html
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• 作者单位：Thomas Schneider (1)
  
  1. Institut für Hochfrequenztechnik, Technische Universit?t Braunschweig, Schleinitzstr. 22, 38106, Braunschweig, Germany
  
• 刊物类别：Physics and Astronomy
• 刊物主题：None Assigned
• 出版者：Springer New York
• ISSN：1866-6906

文摘

The data rate in the communication networks increases by a two number digit every year. Even today’s mobile, wireless devices offer a large number of high-bitrate data services reaching from entertainment over information to communication. However, for the so called last-mile problem, for the connection of the network with remote cellular base stations and for other wireless links ultrahigh-bitrate connections are required. Another important application of ultrahigh-bitrate wireless links is the very fast rebuilding of a network infrastructure after natural disasters like tsunamis, hurricanes and blizzards. Contrary to optical links, carrier waves in the submillimeter-wave, or THz-region of the electromagnetic spectrum offer a high capacity and reliability even under worst weather conditions like a strong rain or dense fog. The THz-range has a large bandwidth so that even with simple modulation formats a quite high bitrate can be transmitted. However, ultrahigh bitrates require spectrally efficient modulation formats and these formats require THz-sources with a very high quality, i.e. low phase noise and narrow linewidth. Here an overview of the possibilities and challenges for ultrahigh bitrate transmission and the generation of high-quality THz-waves is given and a method for the generation of very stable and precise millimeter and THz waves is presented. In first proof of concept experiments a linewidth of