A Hybrid Algorithm for Multi-Beam Steering of LCOS-Based Wavelength Selective Switch
Iterative Fourier transform algorithm (IFTA) has been widely applied to achieve holograms in diffractive optical elements, however it is insufficient for designing holograms uploaded on liquid crystal on silicon (LCOS) to steer multi-beams in a wavelength selective switch (WSS). In this paper, a thr...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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IEEE
2020-01-01
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| Series: | IEEE Photonics Journal |
| Subjects: | |
| Online Access: | https://ieeexplore.ieee.org/document/9079590/ |
| _version_ | 1818619904726663168 |
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| author | Yunshu Gao Zhongwei Tan Xiao Chen Genxiang Chen |
| author_facet | Yunshu Gao Zhongwei Tan Xiao Chen Genxiang Chen |
| author_sort | Yunshu Gao |
| collection | DOAJ |
| description | Iterative Fourier transform algorithm (IFTA) has been widely applied to achieve holograms in diffractive optical elements, however it is insufficient for designing holograms uploaded on liquid crystal on silicon (LCOS) to steer multi-beams in a wavelength selective switch (WSS). In this paper, a three-step hybrid algorithm including IFTA, Symmetrical IFTA with both phase and amplitude freedoms (SIFTA-2) and Genetic algorithm (GA) is developed to optimize the multi-casting hologram and experimentally demonstrated the multi-casting function of WSS. The reconstructed output field not only has max 128 fan-out patterns with flexible power ratio, but also can be adjusted to balance multi-indicators like reconstructed root mean square error (RMSE), diffraction efficiency and crosstalk power by setting flexible weightings of fitness functions in GA. |
| first_indexed | 2024-12-16T17:44:54Z |
| format | Article |
| id | doaj.art-f02282c264eb4b10bd7a1f7742b01887 |
| institution | Directory Open Access Journal |
| issn | 1943-0655 |
| language | English |
| last_indexed | 2024-12-16T17:44:54Z |
| publishDate | 2020-01-01 |
| publisher | IEEE |
| record_format | Article |
| series | IEEE Photonics Journal |
| spelling | doaj.art-f02282c264eb4b10bd7a1f7742b018872022-12-21T22:22:30ZengIEEEIEEE Photonics Journal1943-06552020-01-0112311110.1109/JPHOT.2020.29907629079590A Hybrid Algorithm for Multi-Beam Steering of LCOS-Based Wavelength Selective SwitchYunshu Gao0https://orcid.org/0000-0002-7981-2698Zhongwei Tan1Xiao Chen2Genxiang Chen3School of Electronic and Information Engineering, Beijing Jiaotong University, Beijing, ChinaSchool of Electronic and Information Engineering, Beijing Jiaotong University, Beijing, ChinaCollege of Science, MINZU University of China, Beijing, ChinaCollege of Science, MINZU University of China, Beijing, ChinaIterative Fourier transform algorithm (IFTA) has been widely applied to achieve holograms in diffractive optical elements, however it is insufficient for designing holograms uploaded on liquid crystal on silicon (LCOS) to steer multi-beams in a wavelength selective switch (WSS). In this paper, a three-step hybrid algorithm including IFTA, Symmetrical IFTA with both phase and amplitude freedoms (SIFTA-2) and Genetic algorithm (GA) is developed to optimize the multi-casting hologram and experimentally demonstrated the multi-casting function of WSS. The reconstructed output field not only has max 128 fan-out patterns with flexible power ratio, but also can be adjusted to balance multi-indicators like reconstructed root mean square error (RMSE), diffraction efficiency and crosstalk power by setting flexible weightings of fitness functions in GA.https://ieeexplore.ieee.org/document/9079590/Wavelength selective switchmulticasting hologramhybrid algorithm |
| spellingShingle | Yunshu Gao Zhongwei Tan Xiao Chen Genxiang Chen A Hybrid Algorithm for Multi-Beam Steering of LCOS-Based Wavelength Selective Switch IEEE Photonics Journal Wavelength selective switch multicasting hologram hybrid algorithm |
| title | A Hybrid Algorithm for Multi-Beam Steering of LCOS-Based Wavelength Selective Switch |
| title_full | A Hybrid Algorithm for Multi-Beam Steering of LCOS-Based Wavelength Selective Switch |
| title_fullStr | A Hybrid Algorithm for Multi-Beam Steering of LCOS-Based Wavelength Selective Switch |
| title_full_unstemmed | A Hybrid Algorithm for Multi-Beam Steering of LCOS-Based Wavelength Selective Switch |
| title_short | A Hybrid Algorithm for Multi-Beam Steering of LCOS-Based Wavelength Selective Switch |
| title_sort | hybrid algorithm for multi beam steering of lcos based wavelength selective switch |
| topic | Wavelength selective switch multicasting hologram hybrid algorithm |
| url | https://ieeexplore.ieee.org/document/9079590/ |
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