| DOI | Resolve DOI: https://doi.org/10.1117/12.2017229 |
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| Author | Search for: Halir, Robert; Search for: Maese-Novo, Alejandro; Search for: Romero-García, Sebastián; Search for: Pérez-Galacho, Diego; Search for: Zavargo-Peche, Luis; Search for: Ortega-Moñux, Alejandro; Search for: Molina-Fernández, Íñigo; Search for: Wangüemert-Pérez, J. Gonzalo; Search for: Cheben, Pavel1ORCID identifier: https://orcid.org/0000-0003-4232-9130 |
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| Affiliation | - National Research Council of Canada. NRC Institute for Microstructural Sciences
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| Format | Text, Article |
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| Conference | Integrated Photonics: Materials, Devices, and Applications II, April 24-26, 2013, Grenoble |
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| Subject | broadband device; dispersion engineering; multi-mode interference; passive waveguides; silicon-on-insulator; sub-wave length grating; diffraction gratings; directional couplers; dispersion (waves); optical waveguides; photonics; refractive index; silicon-on-insulator technology; ultra-wideband (UWB); dispersions |
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| Abstract | In most integrated optics platforms device design is restricted to variations in the lateral dimensions, and a small set of etch depths. Sub-wavelength gratings (SWGs) in silicon-on-insulator enable engineering of refractive index in a wide range. SWGs exhibit a pitch smaller than the wavelength of light propagating through them, thereby suppressing diffraction and acting as a homogenous medium with an equivalent refractive index controlled by the duty-cycle. Here, we propose to not only engineer refractive index, but to control SWG dispersion. We use this concept to design ultra-broadband directional couplers (DCs) and multimode interference couplers (MMIs) with a fivefold bandwidth enhancement compared to conventional devices. © 2013 SPIE. |
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| Publication date | 2013 |
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| Publisher | SPIE |
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| In | |
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| Series | |
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| Language | English |
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| Peer reviewed | Yes |
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| NPARC number | 21270559 |
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| Export citation | Export as RIS |
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| Report a correction | Report a correction (opens in a new tab) |
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| Record identifier | b3b60622-4aac-4011-a1aa-559e022e0891 |
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| Record created | 2014-02-17 |
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| Record modified | 2020-04-22 |
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