Broadband Silicon-On-Insulator directional couplers using a combination of straight and curved waveguide sections

Abstract Broadband Silicon-On-Insulator (SOI) directional couplers are designed based on a combination of curved and straight coupled waveguide sections. A design methodology based on the transfer matrix method (TMM) is used to determine the required coupler section lengths, radii, and waveguide cro...

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Autores principales:	George F. R. Chen, Jun Rong Ong, Thomas Y. L. Ang, Soon Thor Lim, Ching Eng Png, Dawn T. H. Tan
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2017
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/5100c2ccba664fba83b4caac3ae0937c
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spelling	oai:doaj.org-article:5100c2ccba664fba83b4caac3ae0937c2021-12-02T11:52:17ZBroadband Silicon-On-Insulator directional couplers using a combination of straight and curved waveguide sections10.1038/s41598-017-07618-62045-2322https://doaj.org/article/5100c2ccba664fba83b4caac3ae0937c2017-08-01T00:00:00Zhttps://doi.org/10.1038/s41598-017-07618-6https://doaj.org/toc/2045-2322Abstract Broadband Silicon-On-Insulator (SOI) directional couplers are designed based on a combination of curved and straight coupled waveguide sections. A design methodology based on the transfer matrix method (TMM) is used to determine the required coupler section lengths, radii, and waveguide cross-sections. A 50/50 power splitter with a measured bandwidth of 88 nm is designed and fabricated, with a device footprint of 20 μm × 3 μm. In addition, a balanced Mach-Zehnder interferometer is fabricated showing an extinction ratio of >16 dB over 100 nm of bandwidth.George F. R. ChenJun Rong OngThomas Y. L. AngSoon Thor LimChing Eng PngDawn T. H. TanNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 7, Iss 1, Pp 1-8 (2017)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q George F. R. Chen Jun Rong Ong Thomas Y. L. Ang Soon Thor Lim Ching Eng Png Dawn T. H. Tan Broadband Silicon-On-Insulator directional couplers using a combination of straight and curved waveguide sections
description	Abstract Broadband Silicon-On-Insulator (SOI) directional couplers are designed based on a combination of curved and straight coupled waveguide sections. A design methodology based on the transfer matrix method (TMM) is used to determine the required coupler section lengths, radii, and waveguide cross-sections. A 50/50 power splitter with a measured bandwidth of 88 nm is designed and fabricated, with a device footprint of 20 μm × 3 μm. In addition, a balanced Mach-Zehnder interferometer is fabricated showing an extinction ratio of >16 dB over 100 nm of bandwidth.
format	article
author	George F. R. Chen Jun Rong Ong Thomas Y. L. Ang Soon Thor Lim Ching Eng Png Dawn T. H. Tan
author_facet	George F. R. Chen Jun Rong Ong Thomas Y. L. Ang Soon Thor Lim Ching Eng Png Dawn T. H. Tan
author_sort	George F. R. Chen
title	Broadband Silicon-On-Insulator directional couplers using a combination of straight and curved waveguide sections
title_short	Broadband Silicon-On-Insulator directional couplers using a combination of straight and curved waveguide sections
title_full	Broadband Silicon-On-Insulator directional couplers using a combination of straight and curved waveguide sections
title_fullStr	Broadband Silicon-On-Insulator directional couplers using a combination of straight and curved waveguide sections
title_full_unstemmed	Broadband Silicon-On-Insulator directional couplers using a combination of straight and curved waveguide sections
title_sort	broadband silicon-on-insulator directional couplers using a combination of straight and curved waveguide sections
publisher	Nature Portfolio
publishDate	2017
url	https://doaj.org/article/5100c2ccba664fba83b4caac3ae0937c
work_keys_str_mv	AT georgefrchen broadbandsilicononinsulatordirectionalcouplersusingacombinationofstraightandcurvedwaveguidesections AT junrongong broadbandsilicononinsulatordirectionalcouplersusingacombinationofstraightandcurvedwaveguidesections AT thomasylang broadbandsilicononinsulatordirectionalcouplersusingacombinationofstraightandcurvedwaveguidesections AT soonthorlim broadbandsilicononinsulatordirectionalcouplersusingacombinationofstraightandcurvedwaveguidesections AT chingengpng broadbandsilicononinsulatordirectionalcouplersusingacombinationofstraightandcurvedwaveguidesections AT dawnthtan broadbandsilicononinsulatordirectionalcouplersusingacombinationofstraightandcurvedwaveguidesections
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Broadband Silicon-On-Insulator directional couplers using a combination of straight and curved waveguide sections

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