| DOI | Resolve DOI: https://doi.org/10.1364/OL.44.001043 |
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| Author | Search for: Cheben, Pavel1ORCID identifier: https://orcid.org/0000-0003-4232-9130; Search for: Čtyroký, Jiří; Search for: Schmid, Jens H.1; Search for: Wang, Shurui1; Search for: Lapointe, Jean1; Search for: Wangüemert-Pérez, J. Gonzalo; Search for: Molina-fernández, Íñigo; Search for: Ortega-moñux, Alejandro; Search for: Halir, Robert; Search for: Melati, Daniele1; Search for: Xu, Danxia1; Search for: Janz, Siegfried1; Search for: Dado, Milan |
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| Affiliation | - National Research Council Canada. Advanced Electronics and Photonics
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| Format | Text, Article |
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| Abstract | Bragg gratings are fundamental building blocks for integrated photonic circuits. In the high-index contrast silicon-on-insulator material platform, it is challenging to accurately control the grating strength and achieve narrow spectral bandwidths. Here we demonstrate a novel Bragg grating geometry utilizing a silicon subwavelength grating (SWG) waveguide with evanescently coupled periodic Bragg loading segments placed outside the SWG core. We report experimental 3 dB filter bandwidths in a range from 8 nm to 150 pm by adjusting the distance of the Bragg loading segments from the core and the relative phase shift of the segments on the two sides of the waveguide, with a structure that has a minimum feature size of 100 nm. |
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| Publication date | 2019 |
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| Publisher | Optical Society of America |
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| In | |
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| Language | English |
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| Peer reviewed | Yes |
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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 | 99359467-8767-4af9-ac4c-97331f2f2a28 |
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| Record created | 2019-05-14 |
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| Record modified | 2020-03-16 |
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