TY - GEN
T1 - A novel analysis method of electromagnetic vortex wave based on modified dynamic mode decomposition
AU - Zhang, Y. M.
AU - Chen, M. L.N.
AU - Jiang, L. J.
N1 - Funding Information:
This work was supported in part by the Research Grants Council of Hong Kong under Grant GRF 17209918, Grant GRF 17210815, and Grant GRF 17207114, in part by the Asian Office of Aerospace Research and Development under Grant FA2386-17-1-0010, in part by the National Natural Science Foundation under Grant 61271158, in part by Hong Kong University Grants Committee AoE/P-04/08, and in part by the HKU Seed Fund under Grant 104005008.
Funding Information:
This work was supported in part by the Research Grants Council of Hong Kong under Grant GRF 17209918, Grant GRF 17210815, and Grant GRF 17207114, in part by the Asian Oce of Aerospace Research and Development under Grant FA2386-17-1-0010, in part by the National Natural Science Foundation under Grant 61271158, in part by Hong Kong University Grants Committee AoE/P-04/08, and in part by the HKU Seed Fund under Grant 104005008.
Publisher Copyright:
© 2019 IEEE.
PY - 2019/12
Y1 - 2019/12
N2 - Recently, electromagnetic (EM) beams with the orbital angular momentum (OAM) have been explored for multiplexing in communication systems. Each OAM mode is encoded with data and can be identified by the OAM index, namely the topological charge. So far, the amplitude of OAM mode is gaining more attention for its application as another modulation format. Therefore, it is of great importance to accurately extract both the OAM index and corresponding amplitude. In this paper, we propose a modified dynamic mode decomposition (DMD) approach for the analysis of OAM modes. It is shown that not only topological charges but also high-resolution amplitude patterns of both single OAM mode and composite OAM modes can be obtained. The proposed approach provides an effective tool for the demultiplexing of OAM-carrying beams, especially in the case when the amplitude information is required.
AB - Recently, electromagnetic (EM) beams with the orbital angular momentum (OAM) have been explored for multiplexing in communication systems. Each OAM mode is encoded with data and can be identified by the OAM index, namely the topological charge. So far, the amplitude of OAM mode is gaining more attention for its application as another modulation format. Therefore, it is of great importance to accurately extract both the OAM index and corresponding amplitude. In this paper, we propose a modified dynamic mode decomposition (DMD) approach for the analysis of OAM modes. It is shown that not only topological charges but also high-resolution amplitude patterns of both single OAM mode and composite OAM modes can be obtained. The proposed approach provides an effective tool for the demultiplexing of OAM-carrying beams, especially in the case when the amplitude information is required.
UR - http://www.scopus.com/inward/record.url?scp=85082494157&partnerID=8YFLogxK
U2 - 10.1109/PIERS-Fall48861.2019.9021415
DO - 10.1109/PIERS-Fall48861.2019.9021415
M3 - Conference article published in proceeding or book
AN - SCOPUS:85082494157
T3 - 2019 Photonics and Electromagnetics Research Symposium - Fall, PIERS - Fall 2019 - Proceedings
SP - 185
EP - 192
BT - 2019 Photonics and Electromagnetics Research Symposium - Fall, PIERS - Fall 2019 - Proceedings
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2019 Photonics and Electromagnetics Research Symposium - Fall, PIERS - Fall 2019
Y2 - 17 December 2019 through 20 December 2019
ER -