Integrated circular optical phased array

Existing OPAs are typically based on 2D rectangular arrays or 1D linear arrays. Both approaches present a limited field-of-view (FOV) due to the presence of the grating lobes when the element spacing is larger than λ/2. To address the need for an increased steering range, we propose a new design str...

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Autores principales:	Liu Qiankun, Smy Tom, Atieh Ahmad, Cheben Pavel, Sánchez-Postigo Alejandro, Ye Winnie N.
Formato:	article
Lenguaje:	EN
Publicado:	EDP Sciences 2021
Materias:	Physics QC1-999
Acceso en línea:	https://doaj.org/article/4a19042b880046629f98ecc266371aa3
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id	oai:doaj.org-article:4a19042b880046629f98ecc266371aa3
record_format	dspace
spelling	oai:doaj.org-article:4a19042b880046629f98ecc266371aa32021-12-02T17:12:51ZIntegrated circular optical phased array2100-014X10.1051/epjconf/202125501004https://doaj.org/article/4a19042b880046629f98ecc266371aa32021-01-01T00:00:00Zhttps://www.epj-conferences.org/articles/epjconf/pdf/2021/09/epjconf_eosam2021_01004.pdfhttps://doaj.org/toc/2100-014XExisting OPAs are typically based on 2D rectangular arrays or 1D linear arrays. Both approaches present a limited field-of-view (FOV) due to the presence of the grating lobes when the element spacing is larger than λ/2. To address the need for an increased steering range, we propose a new design strategy of an OPA system utilizing a 2D circular phased array, with a substantially increased FOV. We present a circular OPA using a demonstrated antenna element design, with an 820-element array. A steering range ΩSR calculated as a solid angle of 0.51π sr, and an angular beamwidth of 0.22°, was achieved. The array exhibits a sidelobe suppression larger than 10 dB, and a FOV of 2π sr. Although the performance is limited by the far field pattern of the individual antenna we chose, our circular OPA achieved, to the best of our knowledge, the largest steering range reported to date compared to the state-of-the-art integrated optical phased arrays reported in literature.Liu QiankunSmy TomAtieh AhmadCheben PavelSánchez-Postigo AlejandroYe Winnie N.EDP SciencesarticlePhysicsQC1-999ENEPJ Web of Conferences, Vol 255, p 01004 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Physics QC1-999
spellingShingle	Physics QC1-999 Liu Qiankun Smy Tom Atieh Ahmad Cheben Pavel Sánchez-Postigo Alejandro Ye Winnie N. Integrated circular optical phased array
description	Existing OPAs are typically based on 2D rectangular arrays or 1D linear arrays. Both approaches present a limited field-of-view (FOV) due to the presence of the grating lobes when the element spacing is larger than λ/2. To address the need for an increased steering range, we propose a new design strategy of an OPA system utilizing a 2D circular phased array, with a substantially increased FOV. We present a circular OPA using a demonstrated antenna element design, with an 820-element array. A steering range ΩSR calculated as a solid angle of 0.51π sr, and an angular beamwidth of 0.22°, was achieved. The array exhibits a sidelobe suppression larger than 10 dB, and a FOV of 2π sr. Although the performance is limited by the far field pattern of the individual antenna we chose, our circular OPA achieved, to the best of our knowledge, the largest steering range reported to date compared to the state-of-the-art integrated optical phased arrays reported in literature.
format	article
author	Liu Qiankun Smy Tom Atieh Ahmad Cheben Pavel Sánchez-Postigo Alejandro Ye Winnie N.
author_facet	Liu Qiankun Smy Tom Atieh Ahmad Cheben Pavel Sánchez-Postigo Alejandro Ye Winnie N.
author_sort	Liu Qiankun
title	Integrated circular optical phased array
title_short	Integrated circular optical phased array
title_full	Integrated circular optical phased array
title_fullStr	Integrated circular optical phased array
title_full_unstemmed	Integrated circular optical phased array
title_sort	integrated circular optical phased array
publisher	EDP Sciences
publishDate	2021
url	https://doaj.org/article/4a19042b880046629f98ecc266371aa3
work_keys_str_mv	AT liuqiankun integratedcircularopticalphasedarray AT smytom integratedcircularopticalphasedarray AT atiehahmad integratedcircularopticalphasedarray AT chebenpavel integratedcircularopticalphasedarray AT sanchezpostigoalejandro integratedcircularopticalphasedarray AT yewinnien integratedcircularopticalphasedarray
_version_	1718381375389696000

Integrated circular optical phased array

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