Fabrication-constrained nanophotonic inverse design

Abstract A major difficulty in applying computational design methods to nanophotonic devices is ensuring that the resulting designs are fabricable. Here, we describe a general inverse design algorithm for nanophotonic devices that directly incorporates fabrication constraints. To demonstrate the cap...

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Autores principales:	Alexander Y. Piggott, Jan Petykiewicz, Logan Su, Jelena Vučković
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2017
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/09784e550d754abd893f65b538bd5285
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spelling	oai:doaj.org-article:09784e550d754abd893f65b538bd52852021-12-02T15:05:48ZFabrication-constrained nanophotonic inverse design10.1038/s41598-017-01939-22045-2322https://doaj.org/article/09784e550d754abd893f65b538bd52852017-05-01T00:00:00Zhttps://doi.org/10.1038/s41598-017-01939-2https://doaj.org/toc/2045-2322Abstract A major difficulty in applying computational design methods to nanophotonic devices is ensuring that the resulting designs are fabricable. Here, we describe a general inverse design algorithm for nanophotonic devices that directly incorporates fabrication constraints. To demonstrate the capabilities of our method, we designed a spatial-mode demultiplexer, wavelength demultiplexer, and directional coupler. We also designed and experimentally demonstrated a compact, broadband 1 × 3 power splitter on a silicon photonics platform. The splitter has a footprint of only 3.8 × 2.5 μm, and is well within the design rules of a typical silicon photonics process, with a minimum radius of curvature of 100 nm. Averaged over the designed wavelength range of 1400–1700 nm, our splitter has a measured insertion loss of 0.642 ± 0.057 dB and power uniformity of 0.641 ± 0.054 dB.Alexander Y. PiggottJan PetykiewiczLogan SuJelena VučkovićNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 7, Iss 1, Pp 1-7 (2017)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Alexander Y. Piggott Jan Petykiewicz Logan Su Jelena Vučković Fabrication-constrained nanophotonic inverse design
description	Abstract A major difficulty in applying computational design methods to nanophotonic devices is ensuring that the resulting designs are fabricable. Here, we describe a general inverse design algorithm for nanophotonic devices that directly incorporates fabrication constraints. To demonstrate the capabilities of our method, we designed a spatial-mode demultiplexer, wavelength demultiplexer, and directional coupler. We also designed and experimentally demonstrated a compact, broadband 1 × 3 power splitter on a silicon photonics platform. The splitter has a footprint of only 3.8 × 2.5 μm, and is well within the design rules of a typical silicon photonics process, with a minimum radius of curvature of 100 nm. Averaged over the designed wavelength range of 1400–1700 nm, our splitter has a measured insertion loss of 0.642 ± 0.057 dB and power uniformity of 0.641 ± 0.054 dB.
format	article
author	Alexander Y. Piggott Jan Petykiewicz Logan Su Jelena Vučković
author_facet	Alexander Y. Piggott Jan Petykiewicz Logan Su Jelena Vučković
author_sort	Alexander Y. Piggott
title	Fabrication-constrained nanophotonic inverse design
title_short	Fabrication-constrained nanophotonic inverse design
title_full	Fabrication-constrained nanophotonic inverse design
title_fullStr	Fabrication-constrained nanophotonic inverse design
title_full_unstemmed	Fabrication-constrained nanophotonic inverse design
title_sort	fabrication-constrained nanophotonic inverse design
publisher	Nature Portfolio
publishDate	2017
url	https://doaj.org/article/09784e550d754abd893f65b538bd5285
work_keys_str_mv	AT alexanderypiggott fabricationconstrainednanophotonicinversedesign AT janpetykiewicz fabricationconstrainednanophotonicinversedesign AT logansu fabricationconstrainednanophotonicinversedesign AT jelenavuckovic fabricationconstrainednanophotonicinversedesign
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Fabrication-constrained nanophotonic inverse design

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