Circular polarization shift-keying and amplitude shift-keying hybrid modulation method based on orbital angular momentum division multiplexing

2020 ◽  
Author(s):  
Yufeng Zhao ◽  
Yong Yao ◽  
Ke Xu ◽  
Yanfu Yang ◽  
Jiajun Tian
Keyword(s):  
Angular Momentum ◽  
Circular Polarization ◽  
Orbital Angular Momentum ◽  
Modulation Method ◽  
Amplitude Shift Keying ◽  
Hybrid Modulation ◽  
Shift Keying

scholarly journals Mixed orbital angular momentum amplitude shift keying through a single hologram

OSA Continuum ◽  
2018 ◽  
Vol 1 (2) ◽  
pp. 295 ◽  
Author(s):  
Shiyao Fu ◽  
Yanwang Zhai ◽  
Ci Yin ◽  
Heng Zhou ◽  
Chunqing Gao
Keyword(s):  
Angular Momentum ◽  
Orbital Angular Momentum ◽  
Amplitude Shift Keying ◽  
Shift Keying

Transmissive 2-bit anisotropic coding metasurface

2022 ◽  
Author(s):  
Pengtao Lai ◽  
Zenglin Li ◽  
Wei Wang ◽  
Jia Qu ◽  
Liang Wei Wu ◽  
...  
Keyword(s):  
Angular Momentum ◽  
Electromagnetic Wave ◽  
Circular Polarization ◽  
Orbital Angular Momentum ◽  
Electromagnetic Waves ◽  
Beam Splitter ◽  
Far Field ◽  
Polarization Conversion ◽  
Field Patterns ◽  
Phase Profile

Abstract Coding metasurfaces have attracted tremendous interests due to unique capabilities of manipulating electromagnetic wave. However, archiving transmissive coding metasurface is still challenging. Here we propose a transmissive anisotropic coding metasurface that enables the independent control of two orthogonal polarizations. The polarization beam splitter and the OAM generator have been studied as typical applications of anisotropic 2-bit coding metasurface. The simulated far field patterns illustrate that the x and y polarized electromagnetic waves are deflected into two different directions, respectively. The anisotropic coding metasurface has been experimentally verified to realize an orbital angular momentum (OAM) beam with l = 2 of right-handed polarized wave, resulting from both contributions from linear-to-circular polarization conversion and the phase profile modulation. This work is beneficial to enrich the polarization manipulation field and develop transmissive coding metasurfaces.

Optical orbital angular momentum shift-keying communication based on coherent demodulation

2019 ◽  
Vol 452 ◽  
pp. 405-410
Author(s):  
Shuqing Chen ◽  
Bo Yang ◽  
Yanliang He ◽  
Zhiqiang Xie ◽  
Mingyang Su ◽  
...  
Keyword(s):  
Angular Momentum ◽  
Orbital Angular Momentum ◽  
Coherent Demodulation ◽  
Shift Keying

scholarly journals Experimental demonstration of free-space multi-state orbital angular momentum shift keying

2019 ◽  
Vol 27 (23) ◽  
pp. 33111 ◽  
Author(s):  
Shiyao Fu ◽  
Yanwang Zhai ◽  
Heng Zhou ◽  
Jianqiang Zhang ◽  
Tonglu Wang ◽  
...  
Keyword(s):  
Angular Momentum ◽  
Orbital Angular Momentum ◽  
Free Space ◽  
Experimental Demonstration ◽  
Shift Keying
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