Metasurface-Based High-Speed Photonic THz OAM Communication System

IF 4.8 1区工程技术 Q2 ENGINEERING, ELECTRICAL & ELECTRONIC

Journal of Lightwave Technology Pub Date : 2024-04-04 DOI:10.1109/JLT.2024.3384477

Hang Yang;Shilie Zheng;Hongqi Zhang;Tong He;Nan Li;Zuomin Yang;Zhidong Lyu;Yuqian He;Lu Zhang;Xianbin Yu

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引用次数: 0

Abstract

The terahertz (THz) and orbital angular momentum (OAM) technologies have become increasingly prominent since they can provide broad bandwidth and large amounts of multiplexing channels. In this paper, a high-speed communication system is proposed and demonstrated by employing photonics-aided THz signal generation and metasurface-based OAM multiplexing techniques. To take advantage of the large bandwidth in the THz band and reduce the complexity of the multiplexing device, the wideband unit operating at 100 GHz and the multiplexed metasurface are designed. After the performance is verified by both simulations and experiments, the generated OAM beams are used as multiplexing channels to transmit the communication signals with 16-ary quadrature amplitude modulation (16-QAM) modulation format, and a data rate of up to 48 Gbit/s is achieved. This work indicates that the metasurface can seamlessly bridge the OAM multiplexing and photonics-aided THz system, and is expected to pave the way towards the evolution of next-generation large-capacity wireless communication.

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基于元表面的高速光子太赫兹 OAM 通信系统

太赫兹（THz）和轨道角动量（OAM）技术能够提供宽带宽和大量的复用信道，因此日益受到重视。本文通过采用光子辅助太赫兹信号生成和基于元表面的 OAM 复用技术，提出并演示了一种高速通信系统。为了利用太赫兹波段的大带宽并降低复用设备的复杂性，设计了工作频率为 100 GHz 的宽带单元和复用元表面。通过仿真和实验验证性能后，将生成的 OAM 波束用作复用通道，以 16-ary quadrature amplitude modulation (16-QAM) 调制格式传输通信信号，实现了高达 48 Gbit/s 的数据传输速率。这项工作表明，元表面可以无缝衔接 OAM 复用和光子辅助太赫兹系统，有望为下一代大容量无线通信的发展铺平道路。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Journal of Lightwave Technology 工程技术-工程：电子与电气

CiteScore

9.40

自引率

14.90%

发文量

936

审稿时长

3.9 months

期刊介绍： The Journal of Lightwave Technology is comprised of original contributions, both regular papers and letters, covering work in all aspects of optical guided-wave science, technology, and engineering. Manuscripts are solicited which report original theoretical and/or experimental results which advance the technological base of guided-wave technology. Tutorial and review papers are by invitation only. Topics of interest include the following: fiber and cable technologies, active and passive guided-wave componentry (light sources, detectors, repeaters, switches, fiber sensors, etc.); integrated optics and optoelectronics; and systems, subsystems, new applications and unique field trials. System oriented manuscripts should be concerned with systems which perform a function not previously available, out-perform previously established systems, or represent enhancements in the state of the art in general.