| DOI | Resolve DOI: https://doi.org/10.1364/OE.23.022553 |
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| Author | Search for: Cheben, Pavel1ORCID identifier: https://orcid.org/0000-0003-4232-9130; Search for: Schmid, Jens H.1; Search for: Wang, Shurui1; Search for: Xu, Dan-Xia1; Search for: Vachon, Martin1; Search for: Janz, Siegfried1; Search for: Lapointe, Jean1; Search for: Painchaud, Yves; Search for: Picard, Marie-Josée |
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| Affiliation | - National Research Council of Canada. Information and Communication Technologies
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| Format | Text, Article |
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| Subject | nanophotonics; optical fibers; optical waveguides; photonic integration technology; polarization; refractive index; silicon; silicon on insulator technology; single mode fibers; waveguides; cross sectional area; high-index contrast waveguides; integrated optical circuit; polarization independent; silicon wire waveguides; standard single mode fibers; transverse electrics; transverse magnetic polarization; optical fiber coupling |
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| Abstract | Coupling of light to and from integrated optical circuits has been recognized as a major practical challenge since the early years of photonics. The coupling is particularly difficult for high index contrast waveguides such as silicon-on-insulator, since the cross-sectional area of silicon wire waveguides is more than two orders of magnitude smaller than that of a standard single-mode fiber. Here, we experimentally demonstrate unprecedented control over the light coupling between the optical fiber and silicon chip by constructing the nanophotonic coupler with ultra-high coupling efficiency simultaneously for both transverse electric and transverse magnetic polarizations. We specifically demonstrate a subwavelength refractive index engineered nanostructure to mitigate loss and wavelength resonances by suppressing diffraction effects, enabling a coupling efficiency over 92% (0.32 dB) and polarization independent operation for a broad spectral range exceeding 100 nm. |
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| Publication date | 2015-08-18 |
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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 | 21277341 |
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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 | f4f6a71b-320e-41c1-b61d-3cde3ab77cdf |
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| Record created | 2016-03-09 |
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| Record modified | 2020-04-22 |
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