Power loss mitigation of orbital-angular-momentum-multiplexed free-space optical links using nonzero radial index Laguerre-Gaussian beams

被引：29

作者：

Li, Long ^{[1
]}

Xie, Guodong ^{[1
]}

Yan, Yan ^{[1
]}

Ren, Yongxiong ^{[1
]}

Liao, Peicheng ^{[1
]}

Zhao, Zhe ^{[1
]}

Ahmed, Nisar ^{[1
]}

Wang, Zhe ^{[1
]}

Bao, Changjing ^{[1
]}

Willner, Asher J. ^{[1
]}

Ashrafi, Solyman ^{[2
]}

Tur, Moshe ^{[3
]}

Willner, Alan E. ^{[1
]}

机构：

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

[2] NxGen Partners, Dallas, TX 75219 USA

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

来源：

JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B-OPTICAL PHYSICS | 2017年 / 34卷 / 01期

基金：

美国国家科学基金会;

关键词：

COMMUNICATION LINK; PERFORMANCE; LIGHT;

D O I：

10.1364/JOSAB.34.000001

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Laguerre-Gaussian (LG) beams with different azimuthal indices are orthogonal to each other regardless of their radial indices. We investigate the potential advantage and impact of multiplexing LG beams with different azimuthal indices and nonzero radial indices, compared to LG beams with different azimuthal indices but zero radial index. Our simulation results show that LG beams with nonzero radial indices could help in receiving higher signal power in a free-space optical link under a certain short transmission distance range, especially when the receiver has a very limited aperture size. Our experimental demonstration shows a more than 6 dB received power improvement when multiplexing four LG beams with nonzero radial indices. (C) 2016 Optical Society of America

引用

页码：1 / 6

页数：6

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