Subwavelength-Structured High-Efficiency Nanophotonic Coupler for Air Top-Cladded Silicon Waveguide
Efficient coupling between an optical fiber and silicon waveguide has been a major practical challenge for silicon photonics since the first day due to the huge mode size mismatch between them. In this paper, we propose a subwavelength structured edge coupler for efficient coupling light into&#x...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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IEEE
2021-01-01
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| Series: | IEEE Photonics Journal |
| Subjects: | |
| Online Access: | https://ieeexplore.ieee.org/document/9511789/ |
| _version_ | 1818682700364513280 |
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| author | Yuhan Sun Ting Li Peiji Zhou Yi Zou |
| author_facet | Yuhan Sun Ting Li Peiji Zhou Yi Zou |
| author_sort | Yuhan Sun |
| collection | DOAJ |
| description | Efficient coupling between an optical fiber and silicon waveguide has been a major practical challenge for silicon photonics since the first day due to the huge mode size mismatch between them. In this paper, we propose a subwavelength structured edge coupler for efficient coupling light into/out from air top-cladded silicon waveguides. Through refractive index engineering, we demonstrate a single-step patterned coupler with a coupling loss of ∼2.5 dB for the wavelength range from 1.5 μm to 1.65 μm. |
| first_indexed | 2024-12-17T10:23:01Z |
| format | Article |
| id | doaj.art-cc84f0c80eab4d31ba7739ee1cb2cfca |
| institution | Directory Open Access Journal |
| issn | 1943-0655 |
| language | English |
| last_indexed | 2024-12-17T10:23:01Z |
| publishDate | 2021-01-01 |
| publisher | IEEE |
| record_format | Article |
| series | IEEE Photonics Journal |
| spelling | doaj.art-cc84f0c80eab4d31ba7739ee1cb2cfca2022-12-21T21:52:44ZengIEEEIEEE Photonics Journal1943-06552021-01-011341510.1109/JPHOT.2021.31040619511789Subwavelength-Structured High-Efficiency Nanophotonic Coupler for Air Top-Cladded Silicon WaveguideYuhan Sun0Ting Li1Peiji Zhou2Yi Zou3https://orcid.org/0000-0002-7675-8542School of Information Science and Technology, ShanghaiTech University, Shanghai, ChinaSchool of Information Science and Technology, ShanghaiTech University, Shanghai, ChinaSchool of Information Science and Technology, ShanghaiTech University, Shanghai, ChinaSchool of Information Science and Technology, ShanghaiTech University, Shanghai, ChinaEfficient coupling between an optical fiber and silicon waveguide has been a major practical challenge for silicon photonics since the first day due to the huge mode size mismatch between them. In this paper, we propose a subwavelength structured edge coupler for efficient coupling light into/out from air top-cladded silicon waveguides. Through refractive index engineering, we demonstrate a single-step patterned coupler with a coupling loss of ∼2.5 dB for the wavelength range from 1.5 μm to 1.65 μm.https://ieeexplore.ieee.org/document/9511789/Subwavelengthedge couplersilicon photonics |
| spellingShingle | Yuhan Sun Ting Li Peiji Zhou Yi Zou Subwavelength-Structured High-Efficiency Nanophotonic Coupler for Air Top-Cladded Silicon Waveguide IEEE Photonics Journal Subwavelength edge coupler silicon photonics |
| title | Subwavelength-Structured High-Efficiency Nanophotonic Coupler for Air Top-Cladded Silicon Waveguide |
| title_full | Subwavelength-Structured High-Efficiency Nanophotonic Coupler for Air Top-Cladded Silicon Waveguide |
| title_fullStr | Subwavelength-Structured High-Efficiency Nanophotonic Coupler for Air Top-Cladded Silicon Waveguide |
| title_full_unstemmed | Subwavelength-Structured High-Efficiency Nanophotonic Coupler for Air Top-Cladded Silicon Waveguide |
| title_short | Subwavelength-Structured High-Efficiency Nanophotonic Coupler for Air Top-Cladded Silicon Waveguide |
| title_sort | subwavelength structured high efficiency nanophotonic coupler for air top cladded silicon waveguide |
| topic | Subwavelength edge coupler silicon photonics |
| url | https://ieeexplore.ieee.org/document/9511789/ |
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