| Download | - View accepted manuscript: Design of a broadband polarization splitter based on anisotropy-engineered tilted subwavelength gratings (PDF, 1.2 MiB)
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| DOI | Resolve DOI: https://doi.org/10.1109/JPHOT.2019.2912335 |
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| Author | Search for: Herrero Bermello, Alaine1; Search for: Luque Gonzalez, Jose Manuel; Search for: Velasco, Aitor; Search for: Ortega-Monux, Alejandro; Search for: Cheben, Pavel1ORCID identifier: https://orcid.org/0000-0003-4232-9130; Search for: Halir, Robert |
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| Affiliation | - National Research Council of Canada. Advanced Electronics and Photonics
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| Format | Text, Article |
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| Subject | polarization beam splitter (PBS); multimode interference coupler (MMI); sub-wavelength grating (SWG); anisotropy engineering; silicon-on-insulator (SOI) |
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| Abstract | Polarization management is of paramount importance in integrated optics, particularly for highly birefringent photonic platforms such as silicon-on-insulator. In this work, we present a polarization beam splitter based on a multimode interference coupler incorporating tilted subwavelength gratings. The tilt provides accurate control of the structural anisotropy and enables independent selection of the beat length for two orthogonal polarization states. As a result, device length is reduced to less than 100 μm while simultaneously achieving broadband operation through subwavelength grating dispersion engineering. Insertion losses below 1 dB and an extinction ratio higher than 20 dB are demonstrated through 3D FDTD simulation in a 131-nm bandwidth. |
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| Publication date | 2019-04-19 |
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| Publisher | IEEE |
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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 | 26ca9337-2d5f-487e-9611-a61121fe3583 |
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| Record created | 2019-05-01 |
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| Record modified | 2020-06-03 |
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