High-Contrast and Compact Integrated Wavelength Diplexer Based on Subwavelength Grating Anisotropic Metamaterial for 1550/2000 nm

A high-contrast and compact wavelength diplexer is presented for conventional 1550 nm and emerging 2000 nm based on a subwavelength-grating (SWG) coupler. The SWG silicon waveguide thoroughly blocks the light propagation around 1550 nm but fully supports 2000 nm (extinction ratio: 43.11 dB). This gr...

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Autores principales:	Danfeng Zhu, Han Ye, Yumin Liu, Jing Li, Zhongyuan Yu
Formato:	article
Lenguaje:	EN
Publicado:	IEEE 2021
Materias:	Integrated optics wavelength diplexer subwavelength grating 2 μm-waveband applications Applied optics. Photonics TA1501-1820 Optics. Light QC350-467
Acceso en línea:	https://doaj.org/article/beacec6701834ddc81a264a7126bbca1
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spelling	oai:doaj.org-article:beacec6701834ddc81a264a7126bbca12021-11-19T00:00:06ZHigh-Contrast and Compact Integrated Wavelength Diplexer Based on Subwavelength Grating Anisotropic Metamaterial for 1550/2000 nm1943-065510.1109/JPHOT.2021.3061966https://doaj.org/article/beacec6701834ddc81a264a7126bbca12021-01-01T00:00:00Zhttps://ieeexplore.ieee.org/document/9363531/https://doaj.org/toc/1943-0655A high-contrast and compact wavelength diplexer is presented for conventional 1550 nm and emerging 2000 nm based on a subwavelength-grating (SWG) coupler. The SWG silicon waveguide thoroughly blocks the light propagation around 1550 nm but fully supports 2000 nm (extinction ratio: 43.11 dB). This grating type anisotropic metamaterial not only efficiently reduces the coupling length but also expands the operational bandwidth. Simulated by 3D finite-difference time-domain method, the proposed diplexer possesses a remarkably low insertion loss and a high contrast of 25.24 (31.7) dB at 1550 (2000) nm. The operational bandwidth of 200 (108) nm is achieved with contrast over 15 dB and insertion loss below 0.22 dB. The footprint of diplexer is only 5.27 μm × 11.85 μm. Moreover, such design has the scalability by simply tuning the geometrical parameters of SWG.Danfeng ZhuHan YeYumin LiuJing LiZhongyuan YuIEEEarticleIntegrated opticswavelength diplexersubwavelength grating2 μm-waveband applicationsApplied optics. PhotonicsTA1501-1820Optics. LightQC350-467ENIEEE Photonics Journal, Vol 13, Iss 2, Pp 1-10 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Integrated optics wavelength diplexer subwavelength grating 2 μm-waveband applications Applied optics. Photonics TA1501-1820 Optics. Light QC350-467
spellingShingle	Integrated optics wavelength diplexer subwavelength grating 2 μm-waveband applications Applied optics. Photonics TA1501-1820 Optics. Light QC350-467 Danfeng Zhu Han Ye Yumin Liu Jing Li Zhongyuan Yu High-Contrast and Compact Integrated Wavelength Diplexer Based on Subwavelength Grating Anisotropic Metamaterial for 1550/2000 nm
description	A high-contrast and compact wavelength diplexer is presented for conventional 1550 nm and emerging 2000 nm based on a subwavelength-grating (SWG) coupler. The SWG silicon waveguide thoroughly blocks the light propagation around 1550 nm but fully supports 2000 nm (extinction ratio: 43.11 dB). This grating type anisotropic metamaterial not only efficiently reduces the coupling length but also expands the operational bandwidth. Simulated by 3D finite-difference time-domain method, the proposed diplexer possesses a remarkably low insertion loss and a high contrast of 25.24 (31.7) dB at 1550 (2000) nm. The operational bandwidth of 200 (108) nm is achieved with contrast over 15 dB and insertion loss below 0.22 dB. The footprint of diplexer is only 5.27 μm × 11.85 μm. Moreover, such design has the scalability by simply tuning the geometrical parameters of SWG.
format	article
author	Danfeng Zhu Han Ye Yumin Liu Jing Li Zhongyuan Yu
author_facet	Danfeng Zhu Han Ye Yumin Liu Jing Li Zhongyuan Yu
author_sort	Danfeng Zhu
title	High-Contrast and Compact Integrated Wavelength Diplexer Based on Subwavelength Grating Anisotropic Metamaterial for 1550/2000 nm
title_short	High-Contrast and Compact Integrated Wavelength Diplexer Based on Subwavelength Grating Anisotropic Metamaterial for 1550/2000 nm
title_full	High-Contrast and Compact Integrated Wavelength Diplexer Based on Subwavelength Grating Anisotropic Metamaterial for 1550/2000 nm
title_fullStr	High-Contrast and Compact Integrated Wavelength Diplexer Based on Subwavelength Grating Anisotropic Metamaterial for 1550/2000 nm
title_full_unstemmed	High-Contrast and Compact Integrated Wavelength Diplexer Based on Subwavelength Grating Anisotropic Metamaterial for 1550/2000 nm
title_sort	high-contrast and compact integrated wavelength diplexer based on subwavelength grating anisotropic metamaterial for 1550/2000 nm
publisher	IEEE
publishDate	2021
url	https://doaj.org/article/beacec6701834ddc81a264a7126bbca1
work_keys_str_mv	AT danfengzhu highcontrastandcompactintegratedwavelengthdiplexerbasedonsubwavelengthgratinganisotropicmetamaterialfor1550x002f2000x00a0nm AT hanye highcontrastandcompactintegratedwavelengthdiplexerbasedonsubwavelengthgratinganisotropicmetamaterialfor1550x002f2000x00a0nm AT yuminliu highcontrastandcompactintegratedwavelengthdiplexerbasedonsubwavelengthgratinganisotropicmetamaterialfor1550x002f2000x00a0nm AT jingli highcontrastandcompactintegratedwavelengthdiplexerbasedonsubwavelengthgratinganisotropicmetamaterialfor1550x002f2000x00a0nm AT zhongyuanyu highcontrastandcompactintegratedwavelengthdiplexerbasedonsubwavelengthgratinganisotropicmetamaterialfor1550x002f2000x00a0nm
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High-Contrast and Compact Integrated Wavelength Diplexer Based on Subwavelength Grating Anisotropic Metamaterial for 1550&#x002F;2000&#x00A0;nm

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