High-order OAM states unwrapping in multiplexed optical links

Yang, Chunyong1; Liu, Rui1; Ni, Wenjun1; Wang, Shun2; Tian, Yongsheng1; Hou, Jin1; Chen, Shaoping1; Shum, Perry Ping3

2023-05-01

10.1063/5.0144999

APL PHOTONICS   影响因子和分区

2378-0967

To accurately unwrap the high-order orbital angular momentum (OAM) for multiplexed vortex beams is a challenge. In this work, over +/- 160 order OAM topological charges have been unwrapped in multiplexed optical links. Optical imaging based discrepancy identification enables the multiplexed OAM modes separating in physics, and the intelligent pattern recognition further promotes its unwrapping in numerical domain. Particularly, the combination of annular phase grating and auxiliary beams features compound spiral stripes, which paves the way for optical intensity recognition with low-complexity and high-commonality. Moreover, the spiral direction characterizes the symbol of the OAM states, which dramatically broadens the amount of multiplexed links. Here, optical separating means assisted by intelligent pattern recognition opens up a new route to high-speed and large-capacity optical communication, which may shed new light on 6G application. (C) 2023 Author(s). All article content, except where otherwise noted, is licensed under a Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/). https://doi.org/10.1063/5.0144999

SCI ; EI

英语

其他

National Natural Science Foundation of China["62171487","62105373"] ; Knowledge Innovation Program of Wuhan-Shuguang Project[2022010801020408] ; Key Technology R&D Program of Hubei Province[2020BBB097] ; Fundamental Research Funds for the Central Universities of the South-Central MinZu University[CZZ22001]

Optics ; Physics

Optics ; Physics, Applied

WOS:001010644100003

AIP Publishing

20232314179398

Optical links ; Pattern recognition

Optical Communication Systems:717.1

Web of Science

1.South Cent Minzu Univ, Coll Elect & Informat Engn, Hubei Engn Res Ctr Intelligent IOTTechnol, Hubei Key Lab Intelligent Wireless Commun, Wuhan 430074, Peoples R China
2.Nanyang Technol Univ, Sch Civil & Environm Engn, 50 Nanyang Ave, Singapore 639798, Singapore
3.Southern Univ Sci & Technol, Coll Engn, Dept Elect & Elect Engn, Shenzhen 518055, Peoples R China

Yang, Chunyong,Liu, Rui,Ni, Wenjun,et al. High-order OAM states unwrapping in multiplexed optical links[J]. APL PHOTONICS,2023,8(5).

Yang, Chunyong.,Liu, Rui.,Ni, Wenjun.,Wang, Shun.,Tian, Yongsheng.,...&Shum, Perry Ping.(2023).High-order OAM states unwrapping in multiplexed optical links.APL PHOTONICS,8(5).

Yang, Chunyong,et al."High-order OAM states unwrapping in multiplexed optical links".APL PHOTONICS 8.5(2023).