Mode-Division-Multiplexing of Multiple Bessel-Gaussian Beams Carrying Orbital-Angular-Momentum for Obstruction-Tolerant Free-Space Optical and Millimetre-Wave Communication Links

被引：66

作者：

Ahmed, Nisar ^{[1
]}

Zhao, Zhe ^{[1
]}

Li, Long ^{[1
]}

Huang, Hao ^{[1
]}

Lavery, Martin P. J. ^{[2
]}

Liao, Peicheng ^{[1
]}

Yan, Yan ^{[1
]}

Wang, Zhe ^{[1
]}

Xie, Guodong ^{[1
]}

Ren, Yongxiong ^{[1
]}

Almaiman, Ahmed ^{[1
]}

Willner, Asher J. ^{[1
]}

Ashrafi, Solyman ^{[3
]}

Molisch, Andreas F. ^{[1
]}

Tur, Moshe ^{[4
]}

Willner, Alan E. ^{[1
]}

机构：

[1] Univ So Calif, Dept Elect Engn, Los Angeles, CA 90089 USA

[2] Univ Glasgow, Sch Engn, Glasgow G12 8QQ, Lanark, Scotland

[3] NxGen Partners, Dallas, TX 75219 USA

[4] Tel Aviv Univ, Sch Elect Engn, IL-69978 Tel Aviv, Israel

来源：

SCIENTIFIC REPORTS | 2016年 / 6卷

基金：

英国工程与自然科学研究理事会; 美国国家科学基金会;

关键词：

NONDIFFRACTING BEAMS; GENERATION; DIFFRACTION; RECONSTRUCTION; TRANSMISSION; PERFORMANCE; LIGHT;

D O I：

10.1038/srep22082

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

We experimentally investigate the potential of using 'self-healing' Bessel-Gaussian beams carrying orbital-angular-momentum to overcome limitations in obstructed free-space optical and 28-GHz millimetre-wave communication links. We multiplex and transmit two beams (l = +1 and +3) over 1.4 metres in both the optical and millimetre-wave domains. Each optical beam carried 50-Gbaud quadrature-phase-shift-keyed data, and each millimetre-wave beam carried 1-Gbaud 16-quadrature-amplitude-modulated data. In both types of links, opaque disks of different sizes are used to obstruct the beams at different transverse positions. We observe self-healing after the obstructions, and assess crosstalk and power penalty when data is transmitted. Moreover, we show that Bessel-Gaussian orbital-angular-momentum beams are more tolerant to obstructions than non-Bessel orbital-angularmomentum beams. For example, when obstructions that are 1 and 0.44 the size of the l = +1 beam, are placed at beam centre, optical and millimetre-wave Bessel-Gaussian beams show similar to 6 dB and similar to 8 dB reduction in crosstalk, respectively.

引用

页数：10

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