| DOI | Resolve DOI: https://doi.org/10.1364/OE.23.022628 |
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| Author | Search for: Benedikovic, Daniel; Search for: Cheben, Pavel1ORCID identifier: https://orcid.org/0000-0003-4232-9130; Search for: Schmid, Jens H.1; Search for: Xu, Dan-Xia1; Search for: Lamontagne, Boris1; Search for: Wang, Shurui1; Search for: Lapointe, Jean1; Search for: Halir, Robert; Search for: Ortega-Moñux, Alejandro; Search for: Janz, Siegfried1; Search for: Dado, Milan |
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| Affiliation | - National Research Council Canada. Information and Communication Technologies
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| Format | Text, Article |
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| Subject | efficiency; optical fibers; photonic devices; photonic integration technology; refractive index; engineered surfaces; fiber chip coupling; fundamental component; photonic integrated circuits; silicon on insulator waveguide; silicon-on- insulators (SOI); single etch process; surface grating couplers; silicon on insulator technology |
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| Abstract | Surface grating couplers are fundamental components in chip-based photonic devices to couple light between photonic integrated circuits and optical fibers. In this work, we report on a grating coupler with sub-decibel experimental coupling efficiency using a single etch process in a standard 220-nm silicon-on-insulator (SOI) platform. We specifically demonstrate a subwavelength metamaterial refractive index engineered nanostructure with backside metal reflector, with the measured peak fiber-chip coupling efficiency of -0.69 dB (85.3%) and 3 dB bandwidth of 60 nm. This is the highest coupling efficiency hitherto experimentally achieved for a surface grating coupler implemented in 220-nm SOI platform. |
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| Publication date | 2015-08-19 |
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| Publisher | The Optical Society |
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| In | |
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| Language | English |
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| Peer reviewed | Yes |
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| NPARC number | 21277379 |
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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 | e2f01bd7-e863-4d77-b50c-f8f8f9bdc747 |
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| Record created | 2016-03-09 |
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| Record modified | 2020-04-22 |
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