SOI multimode waveguide bend with radially bridged SWGs for broadband (de)multiplexing -INVITED

A novel broadband multimode waveguide bend is proposed that supports the propagation of multiple TE modes on a silicon-on-insulator platform. The gradient curvature bend utilizes trapezoidal subwavelength grating (SWG) segments, connected by adiabatically tapered radial strips to achieve efficient m...

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Autores principales:	MacKayt Kevan K., Ye Winnie N.
Formato:	article
Lenguaje:	EN
Publicado:	EDP Sciences 2021
Materias:	Physics QC1-999
Acceso en línea:	https://doaj.org/article/0dbec38450b44c15a83ceacc73b080a7
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id	oai:doaj.org-article:0dbec38450b44c15a83ceacc73b080a7
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spelling	oai:doaj.org-article:0dbec38450b44c15a83ceacc73b080a72021-12-02T17:12:51ZSOI multimode waveguide bend with radially bridged SWGs for broadband (de)multiplexing -INVITED2100-014X10.1051/epjconf/202125501003https://doaj.org/article/0dbec38450b44c15a83ceacc73b080a72021-01-01T00:00:00Zhttps://www.epj-conferences.org/articles/epjconf/pdf/2021/09/epjconf_eosam2021_01003.pdfhttps://doaj.org/toc/2100-014XA novel broadband multimode waveguide bend is proposed that supports the propagation of multiple TE modes on a silicon-on-insulator platform. The gradient curvature bend utilizes trapezoidal subwavelength grating (SWG) segments, connected by adiabatically tapered radial strips to achieve efficient mode (de)multiplexing. The inclusion of the radial strips offers an extra degree of design freedom, allowing the realization of a multimode bend with only one single full etch step. The access waveguide has a width of 2.075 μm with an effective radius of 10 μm. Propagation loss for all modes remains below 2.96 dB, and intermodal crosstalk has a maximum of -19 dB across a broad bandwidth of 100 nm, centred at 1550 nm. This work presents an excellent design choice for broadband mode-division multiplexing operations.MacKayt Kevan K.Ye Winnie N.EDP SciencesarticlePhysicsQC1-999ENEPJ Web of Conferences, Vol 255, p 01003 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Physics QC1-999
spellingShingle	Physics QC1-999 MacKayt Kevan K. Ye Winnie N. SOI multimode waveguide bend with radially bridged SWGs for broadband (de)multiplexing -INVITED
description	A novel broadband multimode waveguide bend is proposed that supports the propagation of multiple TE modes on a silicon-on-insulator platform. The gradient curvature bend utilizes trapezoidal subwavelength grating (SWG) segments, connected by adiabatically tapered radial strips to achieve efficient mode (de)multiplexing. The inclusion of the radial strips offers an extra degree of design freedom, allowing the realization of a multimode bend with only one single full etch step. The access waveguide has a width of 2.075 μm with an effective radius of 10 μm. Propagation loss for all modes remains below 2.96 dB, and intermodal crosstalk has a maximum of -19 dB across a broad bandwidth of 100 nm, centred at 1550 nm. This work presents an excellent design choice for broadband mode-division multiplexing operations.
format	article
author	MacKayt Kevan K. Ye Winnie N.
author_facet	MacKayt Kevan K. Ye Winnie N.
author_sort	MacKayt Kevan K.
title	SOI multimode waveguide bend with radially bridged SWGs for broadband (de)multiplexing -INVITED
title_short	SOI multimode waveguide bend with radially bridged SWGs for broadband (de)multiplexing -INVITED
title_full	SOI multimode waveguide bend with radially bridged SWGs for broadband (de)multiplexing -INVITED
title_fullStr	SOI multimode waveguide bend with radially bridged SWGs for broadband (de)multiplexing -INVITED
title_full_unstemmed	SOI multimode waveguide bend with radially bridged SWGs for broadband (de)multiplexing -INVITED
title_sort	soi multimode waveguide bend with radially bridged swgs for broadband (de)multiplexing -invited
publisher	EDP Sciences
publishDate	2021
url	https://doaj.org/article/0dbec38450b44c15a83ceacc73b080a7
work_keys_str_mv	AT mackaytkevank soimultimodewaveguidebendwithradiallybridgedswgsforbroadbanddemultiplexinginvited AT yewinnien soimultimodewaveguidebendwithradiallybridgedswgsforbroadbanddemultiplexinginvited
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SOI multimode waveguide bend with radially bridged SWGs for broadband (de)multiplexing -INVITED

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