Independent optical vortices in free-space optical communications

被引：0
|
作者：
Tudor, Rebeca [1 ,2 ]
Kusko, Cristian [1 ]
Kusko, Mihai [1 ]
Mihailescu, Mona [3 ]
Avram, Andrei [1 ]
机构：
[1] Natl Inst R&D Microtechnol IMT, Bucharest 023573, Romania
[2] Univ Bucharest, Fac Phys, Bucharest 077125, Romania
[3] Univ Politehn Bucuresti, Dept Phys, Bucharest 060042, Romania
来源：
2016 39TH INTERNATIONAL SEMICONDUCTOR CONFERENCE (CAS) | 2016年
关键词：
FSOC; OAM optical vortex; SPP; CGH; ORBITAL ANGULAR-MOMENTUM; LIGHT;
D O I：
暂无
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
We present a free space optical communicator prototype working with independent optical vortex beams. The information is encoded by these helical beams which carry different orbital angular momentum (OAM) being superposed in one single channel of communication. The detection consists in the transformation of an optical vortex into a Gaussian beam. This versatile experimental set-up uses reflective spiral phase plates (SPPs) in the transmitter in order to generate the optical vortices. In the receiver an amplitude fork-like computer generated hologram (CGH) detects the transmitted symbols through free space. Simulation results based on Kirchhoff diffraction integral are in agreement with experimental data.
引用
收藏
页码：37 / 40
页数：4
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