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High-capacity millimetre-wave communications with orbital angular momentum multiplexing

Author

Listed:
  • Yan Yan

    (University of Southern California)

  • Guodong Xie

    (University of Southern California)

  • Martin P. J. Lavery

    (School of Physics and Astronomy, University of Glasgow)

  • Hao Huang

    (University of Southern California)

  • Nisar Ahmed

    (University of Southern California)

  • Changjing Bao

    (University of Southern California)

  • Yongxiong Ren

    (University of Southern California)

  • Yinwen Cao

    (University of Southern California)

  • Long Li

    (University of Southern California)

  • Zhe Zhao

    (University of Southern California)

  • Andreas F. Molisch

    (University of Southern California)

  • Moshe Tur

    (School of Electrical Engineering, Tel Aviv University)

  • Miles J. Padgett

    (School of Physics and Astronomy, University of Glasgow)

  • Alan E. Willner

    (University of Southern California)

Abstract

One property of electromagnetic waves that has been recently explored is the ability to multiplex multiple beams, such that each beam has a unique helical phase front. The amount of phase front ‘twisting’ indicates the orbital angular momentum state number, and beams with different orbital angular momentum are orthogonal. Such orbital angular momentum based multiplexing can potentially increase the system capacity and spectral efficiency of millimetre-wave wireless communication links with a single aperture pair by transmitting multiple coaxial data streams. Here we demonstrate a 32-Gbit s−1 millimetre-wave link over 2.5 metres with a spectral efficiency of ~16 bit s−1 Hz−1 using four independent orbital–angular momentum beams on each of two polarizations. All eight orbital angular momentum channels are recovered with bit-error rates below 3.8 × 10−3. In addition, we demonstrate a millimetre-wave orbital angular momentum mode demultiplexer to demultiplex four orbital angular momentum channels with crosstalk less than −12.5 dB and show an 8-Gbit s−1 link containing two orbital angular momentum beams on each of two polarizations.

Suggested Citation

  • Yan Yan & Guodong Xie & Martin P. J. Lavery & Hao Huang & Nisar Ahmed & Changjing Bao & Yongxiong Ren & Yinwen Cao & Long Li & Zhe Zhao & Andreas F. Molisch & Moshe Tur & Miles J. Padgett & Alan E. Wi, 2014. "High-capacity millimetre-wave communications with orbital angular momentum multiplexing," Nature Communications, Nature, vol. 5(1), pages 1-9, December.
    • Handle: RePEc:nat:natcom:v:5:y:2014:i:1:d:10.1038_ncomms5876
    DOI: 10.1038/ncomms5876
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    Cited by:

    1. Kai Wu & Jing-Jing Liu & Yu-jiang Ding & Wei Wang & Bin Liang & Jian-Chun Cheng, 2022. "Metamaterial-based real-time communication with high information density by multipath twisting of acoustic wave," Nature Communications, Nature, vol. 13(1), pages 1-8, December.
    2. Mingjin Dai & Chongwu Wang & Fangyuan Sun & Qi Jie Wang, 2024. "On-chip photodetection of angular momentums of vortex structured light," Nature Communications, Nature, vol. 15(1), pages 1-8, December.

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