Free-space optical communication link using perfect vortex beams carrying orbital angular momentum (OAM)

被引：79

作者：

Zhu, Fuquan ^{[1
]}

Huang, Sujuan ^{[1
]}

Shao, Wei ^{[1
]}

Zhang, Jie ^{[1
]}

Chen, Musheng ^{[1
]}

Zhang, Weibing ^{[1
]}

Zeng, Junzhang ^{[1
]}

机构：

[1] Shanghai Univ, Sch Commun & Informat Engn, Key Lab Special Fiber Opt & Opt Access Networks, Shanghai 200072, Peoples R China

来源：

OPTICS COMMUNICATIONS | 2017年 / 396卷

关键词：

Optical vortices; Spatial light modulator; Free-space optical communication; GENERATION; DYNAMICS;

D O I：

10.1016/j.optcom.2017.03.023

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We experimentally demonstrate a free-space optical communication link using perfect vortex beams. Perfect vortex beams with different topological charges are generated using a phase-modulation-type spatial light modulator (SLM) loaded with novel phase holograms based on the Bessel function. With the help of a microscope objective and simple lens, perfect vortex beams are transmitted effectively for a certain distance. After completing the demodulation of perfect vortex beams carrying OFDM 16-QAM signals and a series of offline processing on the Gaussian bright spot demodulated from the perfect vortex beams, we also achieve a communication link. The constellations and mean bit error rates (BER) of subcarriers are shown.

引用

页码：50 / 57

页数：8

共 24 条

[1]

Ahmed N., 2016, SCI REP, P6

[2] Atom dynamics in multiple Laguerre-Gaussian beams [J].