High-Efficiency, Wide Working Bandwidth Antenna Based on SOI Platform for Optical Phased Array

A novel structure of a subwavelength surface optical antenna for optical phased array is proposed in this paper. An asymmetric vertical grating structure is applied to achieve high emission efficiency (73% at 1550 nm). Optical antennas with large fabrication tolerances can also maintain a wide worki...

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Detalles Bibliográficos
Autores principales: Wang, Zihao, Liao, Jiali, Xie, Yixiang, Sun, Yanling, Li, Xifeng, Li, Wei
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2021
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8399052/
https://www.ncbi.nlm.nih.gov/pubmed/34442619
http://dx.doi.org/10.3390/mi12080996
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author Wang, Zihao
Liao, Jiali
Xie, Yixiang
Sun, Yanling
Li, Xifeng
Li, Wei
author_facet Wang, Zihao
Liao, Jiali
Xie, Yixiang
Sun, Yanling
Li, Xifeng
Li, Wei
author_sort Wang, Zihao
collection PubMed
description A novel structure of a subwavelength surface optical antenna for optical phased array is proposed in this paper. An asymmetric vertical grating structure is applied to achieve high emission efficiency (73% at 1550 nm). Optical antennas with large fabrication tolerances can also maintain a wide working bandwidth of 1 dB between 1350 and 1850 nm. The far-field scanning characteristics of 16-channel optical phased array are investigated in this study by employing the proposed antenna. The results show that the background suppression without considering side lobes caused by the antenna arrangement is −24.5 dB when the phase difference is 0 and when the scan range is as large as ±14.8° × 73.6°.
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spelling pubmed-83990522021-08-29 High-Efficiency, Wide Working Bandwidth Antenna Based on SOI Platform for Optical Phased Array Wang, Zihao Liao, Jiali Xie, Yixiang Sun, Yanling Li, Xifeng Li, Wei Micromachines (Basel) Article A novel structure of a subwavelength surface optical antenna for optical phased array is proposed in this paper. An asymmetric vertical grating structure is applied to achieve high emission efficiency (73% at 1550 nm). Optical antennas with large fabrication tolerances can also maintain a wide working bandwidth of 1 dB between 1350 and 1850 nm. The far-field scanning characteristics of 16-channel optical phased array are investigated in this study by employing the proposed antenna. The results show that the background suppression without considering side lobes caused by the antenna arrangement is −24.5 dB when the phase difference is 0 and when the scan range is as large as ±14.8° × 73.6°. MDPI 2021-08-21 /pmc/articles/PMC8399052/ /pubmed/34442619 http://dx.doi.org/10.3390/mi12080996 Text en © 2021 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Wang, Zihao
Liao, Jiali
Xie, Yixiang
Sun, Yanling
Li, Xifeng
Li, Wei
High-Efficiency, Wide Working Bandwidth Antenna Based on SOI Platform for Optical Phased Array
title High-Efficiency, Wide Working Bandwidth Antenna Based on SOI Platform for Optical Phased Array
title_full High-Efficiency, Wide Working Bandwidth Antenna Based on SOI Platform for Optical Phased Array
title_fullStr High-Efficiency, Wide Working Bandwidth Antenna Based on SOI Platform for Optical Phased Array
title_full_unstemmed High-Efficiency, Wide Working Bandwidth Antenna Based on SOI Platform for Optical Phased Array
title_short High-Efficiency, Wide Working Bandwidth Antenna Based on SOI Platform for Optical Phased Array
title_sort high-efficiency, wide working bandwidth antenna based on soi platform for optical phased array
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8399052/
https://www.ncbi.nlm.nih.gov/pubmed/34442619
http://dx.doi.org/10.3390/mi12080996
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