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Reconfigurable beam system for non-line-of-sight free-space optical communication

机译:用于非视距自由空间光通信的可重构光束系统

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摘要

In this paper,we propose a reconfigurable beam-shaping system to permit energy-efficient non-line-of-sight (NLOS) free-space optical communication.Light is steered around obstacles blocking the direct communication pathway and reaches a receiver after reflecting off of a diffuse surface.A coherent array optical transmitter (CAO-Tx) is used to spatially shape the wavefront of the light incident on a diffuse surface.Wavefront shaping is used to enhance the amount of diffusely reflected light reaching the optical receiver.Synthetic NLOS experiments for a signal reflected over an angular range of 20° are presented.A record-breaking 30-Gbit/s orthogonal frequency-division multiplexing signal is transmitted over a diffused optical wireless link with a >17-dB gain.
机译:在本文中,我们提出了一种可重构光束成形系统,以实现节能的非视距(NLOS)自由空间光通信。光线绕过阻碍直接通信路径的障碍物并在反射后到达接收器使用相干阵列光学发射器(CAO-Tx)对入射在散射表面上的光的波阵面进行空间整形,使用波前整形来增强到达光学接收器的漫反射光量。提出了在20°角范围内反射信号的实验。破纪录的30 Gbit / s正交频分多路复用信号通过扩频光无线链路以> 17 dB的增益传输。

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  • 来源
    《光:科学与应用(英文版)》 |2019年第4期|591-599|共9页
  • 作者单位

    Institute for Photonic Integration, Eindhoven University of Technology, PO Box 5135600 MB Eindhoven, the Netherlands;

    Institute for Photonic Integration, Eindhoven University of Technology, PO Box 5135600 MB Eindhoven, the Netherlands;

    Faculty of Science and Technology, University of Twente, P.O.Box 2177500 AE Enschede, the Netherlands;

    State Key Laboratory of Advanced Optical Communication Systems and Networks, Peking University, Beijing 100871, China;

    Faculty of Science and Technology, University of Twente, P.O.Box 2177500 AE Enschede, the Netherlands;

    Institute for Photonic Integration, Eindhoven University of Technology, PO Box 5135600 MB Eindhoven, the Netherlands;

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  • 入库时间 2022-08-19 04:30:04
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