石墨烯太赫兹调制器及330 GHz无线通信系统

摘要

现有太赫兹无线通信系统通常采用微波倍频或直接调源的方式。本文从太赫兹波空间调制技术出发，研究了一种基于直接调制技术的太赫兹无线通信系统。重点探索了一种基于石墨烯/半导体硅的复合结构(GOS)，研究出调制速率达到1 MHz，调制深度50%以上，工作频带覆盖0.2 THz~2 THz频段的新型全光学太赫兹调制器。在此基础上，构建了330 GHz载波频率的太赫兹无线通信系统，实现了1 Mbps的通信速率。%Currently,-there-are-two-methods-to-develop-terahertz-wireless-communication-system.-One-way-is-to-use-the-microwave-frequency-doubling-technology.-Another-approach-is-to-direct-modulate-THz-source.-In-this-paper,-different-from-both,-we-study-a-terahertz-wireless-communication-system-based-on-spatial-direct-modulation-mode.-We-focus-on-exploring-the-structure-of-combining-silicon-and-graphene(Graphene-on-Silicon,-GOS),-and-have-developed-a-new-type-of-terahertz-modulator-with-1-MHz-modulation-rate,-over-50%-modulation-depth-and-0.2-2-THz-frequency-band.-According-to-this-study,-we-design-and-build-a-330-GHz-terahertz-wireless-communication-system,-and-the-system-has-achieved-a-communication-rate-of-1-Mbps.