Cylindrical vector beam multiplexer/demultiplexer using off-axis polarization control

Shuqing Chen; Zhiqiang Xie; Huapeng Ye; Xinrou Wang; Zhenghao Guo; Yanliang He; Ying Li; Xiaocong Yuan; Dianyuan Fan

doi:10.1038/s41377-021-00667-7

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Cylindrical vector beam multiplexer/demultiplexer using off-axis polarization control

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- Cylindrical vector beam multiplexer/demultiplexer using off-axis polarization control
- Cylindrical vector beam multiplexer/demultiplexer using off-axis polarization control
- LSA 2021年10卷第12期页码：2360-2368
- Affiliations：
  
  1.Institute of Microscale Optoelectronics, Shenzhen University, 518060 Shenzhen, China
  2.Guangdong Provincial Key Laboratory of Optical Information Materials and Technology & Institute of Electronic Paper Displays, South China Academy of Advanced Optoelectronics, South China Normal University, 510006 Guangzhou, China
- Author bio：
  
  Ying Li (queenly@szu.edu.cn)
  Xiaocong Yuan (xcyuan@szu.edu.cn)
- Funds：
- DOI：10.1038/s41377-021-00667-7
  中图分类号：
- 纸质出版日期：2021-12-31，
  
  网络出版日期：2021-11-02，
  
  收稿日期：2021-06-10，
  
  修回日期：2021-10-18，
  
  录用日期：2021-10-18
- Accepted：
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Cylindrical vector beam multiplexer/demultiplexer using off-axis polarization control[J]. LSA, 2021,10(12):2360-2368.

Chen, S. Q. et al. Cylindrical vector beam multiplexer/demultiplexer using off-axis polarization control. Light: Science & Applications, 10, 2360-2368 (2021).
Cylindrical vector beam multiplexer/demultiplexer using off-axis polarization control[J]. LSA, 2021,10(12):2360-2368. DOI： 10.1038/s41377-021-00667-7.

Chen, S. Q. et al. Cylindrical vector beam multiplexer/demultiplexer using off-axis polarization control. Light: Science & Applications, 10, 2360-2368 (2021). DOI： 10.1038/s41377-021-00667-7.

摘要

Abstract

The emergence of cylindrical vector beam (CVB) multiplexing has opened new avenues for high-capacity optical communication. Although several configurations have been developed to couple/separate CVBs

the CVB multiplexer/demultiplexer remains elusive due to lack of effective off-axis polarization control technologies. Here we report a straightforward approach to realize off-axis polarization control for CVB multiplexing/demultiplexing based on a metal–dielectric–metal metasurface. We show that the left- and right-handed circularly polarized (LHCP/RHCP) components of CVBs are independently modulated via spin-to-orbit interactions by the properly designed metasurface

and then simultaneously multiplexed and demultiplexed due to the reversibility of light path and the conservation of vector mode. We also show that the proposed multiplexers/demultiplexers are broadband (from 1310 to 1625 nm) and compatible with wavelength-division-multiplexing. As a proof of concept

we successfully demonstrate a four-channel CVB multiplexing communication

combining wavelength-division-multiplexing and polarization-division-multiplexing with a transmission rate of 1.56 Tbit/s and a bit-error-rate of 10

−6

at the receive power of −21.6 dBm. This study paves the way for CVB multiplexing/demultiplexing and may benefit high-capacity CVB communication.

关键词

Keywords

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