Statistical Recognition of OAM States in Free-Space Optical System
The orbital angular momentum (OAM) states are used for OAM modulation and OAM multiplexing in free-space optical (FSO) communication systems to enhance the transmission quality and capacity. Although a few impactful methods had been developed to measure static OAM states, the fast and accurate recog...
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| Format: | Article |
| Language: | English |
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IEEE
2024-01-01
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| Series: | IEEE Photonics Journal |
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| Online Access: | https://ieeexplore.ieee.org/document/10552050/ |
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| author | Qinnan Zhu Guowei Yang Zhiyu Yuan Meihua Bi Xuefang Zhou Miao Hu |
| author_facet | Qinnan Zhu Guowei Yang Zhiyu Yuan Meihua Bi Xuefang Zhou Miao Hu |
| author_sort | Qinnan Zhu |
| collection | DOAJ |
| description | The orbital angular momentum (OAM) states are used for OAM modulation and OAM multiplexing in free-space optical (FSO) communication systems to enhance the transmission quality and capacity. Although a few impactful methods had been developed to measure static OAM states, the fast and accurate recognition of dynamic OAM states in FSO communications remains a challenge due to the OAM crosstalk easily induced by the atmospheric turbulence. In this paper, we present a new simple statistical recognition method realized by utilizing the turbulence-induced crosstalk distribution, other than the routine way to use the spatial intensity patterns. The proposed method is based on acquiring the priori OAM crosstalk distribution of the training optical data, and then using similarity analysis to recognize the OAM states of the information optical data. Its availability and accuracy are validated through the computer simulations. The recognition accuracy under relatively strong turbulence conditions can be improved by using wavefront compensation and specific distance calculation. |
| format | Article |
| id | doaj-art-a1e8700f2a45427eb46ff3d564efcdd2 |
| institution | Kabale University |
| issn | 1943-0655 |
| language | English |
| publishDate | 2024-01-01 |
| publisher | IEEE |
| record_format | Article |
| series | IEEE Photonics Journal |
| spelling | doaj-art-a1e8700f2a45427eb46ff3d564efcdd22025-01-24T00:00:40ZengIEEEIEEE Photonics Journal1943-06552024-01-011641810.1109/JPHOT.2024.341093110552050Statistical Recognition of OAM States in Free-Space Optical SystemQinnan Zhu0Guowei Yang1https://orcid.org/0000-0002-5414-892XZhiyu Yuan2Meihua Bi3https://orcid.org/0000-0001-8177-1808Xuefang Zhou4https://orcid.org/0000-0003-2042-2924Miao Hu5https://orcid.org/0000-0002-8843-4318School of Electronics and Information Engineering, Hangzhou Dianzi University, Hangzhou, ChinaSchool of Communication Engineering, Hangzhou Dianzi University, Hangzhou, ChinaSchool of Communication Engineering, Hangzhou Dianzi University, Hangzhou, ChinaSchool of Communication Engineering, Hangzhou Dianzi University, Hangzhou, ChinaSchool of Communication Engineering, Hangzhou Dianzi University, Hangzhou, ChinaSchool of Communication Engineering, Hangzhou Dianzi University, Hangzhou, ChinaThe orbital angular momentum (OAM) states are used for OAM modulation and OAM multiplexing in free-space optical (FSO) communication systems to enhance the transmission quality and capacity. Although a few impactful methods had been developed to measure static OAM states, the fast and accurate recognition of dynamic OAM states in FSO communications remains a challenge due to the OAM crosstalk easily induced by the atmospheric turbulence. In this paper, we present a new simple statistical recognition method realized by utilizing the turbulence-induced crosstalk distribution, other than the routine way to use the spatial intensity patterns. The proposed method is based on acquiring the priori OAM crosstalk distribution of the training optical data, and then using similarity analysis to recognize the OAM states of the information optical data. Its availability and accuracy are validated through the computer simulations. The recognition accuracy under relatively strong turbulence conditions can be improved by using wavefront compensation and specific distance calculation.https://ieeexplore.ieee.org/document/10552050/Free-space optics (FSO)orbital angular momentum (OAM)state recognitioncrosstalk distributionwave- front compensation |
| spellingShingle | Qinnan Zhu Guowei Yang Zhiyu Yuan Meihua Bi Xuefang Zhou Miao Hu Statistical Recognition of OAM States in Free-Space Optical System IEEE Photonics Journal Free-space optics (FSO) orbital angular momentum (OAM) state recognition crosstalk distribution wave- front compensation |
| title | Statistical Recognition of OAM States in Free-Space Optical System |
| title_full | Statistical Recognition of OAM States in Free-Space Optical System |
| title_fullStr | Statistical Recognition of OAM States in Free-Space Optical System |
| title_full_unstemmed | Statistical Recognition of OAM States in Free-Space Optical System |
| title_short | Statistical Recognition of OAM States in Free-Space Optical System |
| title_sort | statistical recognition of oam states in free space optical system |
| topic | Free-space optics (FSO) orbital angular momentum (OAM) state recognition crosstalk distribution wave- front compensation |
| url | https://ieeexplore.ieee.org/document/10552050/ |
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