High-capacity millimetre-wave communications with orbital angular momentum multiplexing. Yan, Y., Xie, G., Lavery, M. P. J., Huang, H., Ahmed, N., Bao, C., Ren, Y., Cao, Y., Li, L., Zhao, Z., Molisch, A. F., Tur, M., Padgett, M. J., & Willner, A. E. Nature Communications, 5:4876, September, 2014. ![High-capacity millimetre-wave communications with orbital angular momentum multiplexing [link]](https://bibbase.org/img/filetypes/link.svg "link")
Paper doi abstract bibtex 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 \textasciitilde16 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.
@article{yan_high-capacity_2014,
title = {High-capacity millimetre-wave communications with orbital angular momentum multiplexing},
volume = {5},
copyright = {2014 Nature Publishing Group},
url = {https://www.nature.com/articles/ncomms5876},
doi = {10.1038/ncomms5876},
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 {\textasciitilde}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.},
language = {en},
urldate = {2019-03-22},
journal = {Nature Communications},
author = {Yan, Yan and Xie, Guodong and Lavery, Martin P. J. and Huang, Hao and Ahmed, Nisar and Bao, Changjing and Ren, Yongxiong and Cao, Yinwen and Li, Long and Zhao, Zhe and Molisch, Andreas F. and Tur, Moshe and Padgett, Miles J. and Willner, Alan E.},
month = sep,
year = {2014},
pages = {4876},
file = {Full Text PDF:D\:\\Zotero\\storage\\VXR2FG78\\Yan et al. - 2014 - High-capacity millimetre-wave communications with .pdf:application/pdf;ncomm.SUPPLEMENTARY INFORMATION:D\:\\Zotero\\storage\\YL8QIDH6\\ncomm.SUPPLEMENTARY INFORMATION.pdf:application/pdf;Snapshot:D\:\\Zotero\\storage\\BX3Q9HTH\\ncomms5876.html:text/html}
}
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