Ultrabroadband High Coupling Efficiency Fiber-to-Waveguide Coupler Using Si<inline-formula> <tex-math notation="LaTeX">$_{3}$</tex-math></inline-formula>N<inline-formula><tex-math notation="LaTeX">$_{4}$ </tex-math></inline-formula>/SiO<inline-formula><tex-math notation="LaTeX">$_{2}$</tex-math></inline-formula> Waveguides on Silicon
An easy-to-fabricate but very efficient fiber-to-waveguide coupler is theoretically analyzed and experimentally demonstrated. In this design, light from a single-mode fiber can be butt coupled into a single-mode high-index-contrast Si<inline-formula><tex-math notation="LaTeX">$...
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| Format: | Article |
| Language: | English |
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IEEE
2016-01-01
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| Series: | IEEE Photonics Journal |
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| Online Access: | https://ieeexplore.ieee.org/document/7544563/ |
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| author | Tiecheng Zhu Yiwen Hu Pradip Gatkine Sylvain Veilleux Joss Bland-Hawthorn Mario Dagenais |
| author_facet | Tiecheng Zhu Yiwen Hu Pradip Gatkine Sylvain Veilleux Joss Bland-Hawthorn Mario Dagenais |
| author_sort | Tiecheng Zhu |
| collection | DOAJ |
| description | An easy-to-fabricate but very efficient fiber-to-waveguide coupler is theoretically analyzed and experimentally demonstrated. In this design, light from a single-mode fiber can be butt coupled into a single-mode high-index-contrast Si<inline-formula><tex-math notation="LaTeX">$_{3}$</tex-math></inline-formula>N<inline-formula> <tex-math notation="LaTeX">$_{4}$</tex-math></inline-formula>/SiO<inline-formula><tex-math notation="LaTeX">$_{2}$ </tex-math></inline-formula> waveguide with a measured coupling efficiency of 96% at the wavelength of 1550 nm and <inline-formula><tex-math notation="LaTeX">$>$</tex-math></inline-formula>90% in the spectral range from 1450 to 1650 nm. Large horizontal and vertical alignment tolerances of 3.8 <inline-formula> <tex-math notation="LaTeX">$\mu \text{m}$</tex-math></inline-formula> and 3.6 <inline-formula> <tex-math notation="LaTeX">$\mu \text{m}$</tex-math></inline-formula>, respectively, are obtained between the fiber and the waveguide coupler. All these experimental results agree well with simulations. The waveguide coupler also features ease of end-facet cleaving and can be used in ultrabroadband high coupling efficiency applications. |
| format | Article |
| id | doaj-art-5aff0ed437fd446ab1c3ea71e43f39eb |
| institution | DOAJ |
| issn | 1943-0655 |
| language | English |
| publishDate | 2016-01-01 |
| publisher | IEEE |
| record_format | Article |
| series | IEEE Photonics Journal |
| spelling | doaj-art-5aff0ed437fd446ab1c3ea71e43f39eb2025-08-20T03:15:13ZengIEEEIEEE Photonics Journal1943-06552016-01-018511210.1109/JPHOT.2016.26000377544563Ultrabroadband High Coupling Efficiency Fiber-to-Waveguide Coupler Using Si<inline-formula> <tex-math notation="LaTeX">$_{3}$</tex-math></inline-formula>N<inline-formula><tex-math notation="LaTeX">$_{4}$ </tex-math></inline-formula>/SiO<inline-formula><tex-math notation="LaTeX">$_{2}$</tex-math></inline-formula> Waveguides on SiliconTiecheng Zhu0Yiwen Hu1Pradip Gatkine2Sylvain Veilleux3Joss Bland-Hawthorn4Mario Dagenais5Department of Electrical and Computer Engineering, University of Maryland, College Park, MD, USADepartment of Electrical and Computer Engineering, University of Maryland, College Park, MD, USADepartment of Astronomy and Joint Space-Science Institute, University of Maryland, College Park, MD, USADepartment of Astronomy and Joint Space-Science Institute, University of Maryland, College Park, MD, USASydney Institute for Astronomy and Sydney Astrophotonic Instrumentation Labs, School of Physics, The University of Sydney, Sydney, NSW, AustraliaDepartment of Electrical and Computer Engineering, University of Maryland, College Park, MD, USAAn easy-to-fabricate but very efficient fiber-to-waveguide coupler is theoretically analyzed and experimentally demonstrated. In this design, light from a single-mode fiber can be butt coupled into a single-mode high-index-contrast Si<inline-formula><tex-math notation="LaTeX">$_{3}$</tex-math></inline-formula>N<inline-formula> <tex-math notation="LaTeX">$_{4}$</tex-math></inline-formula>/SiO<inline-formula><tex-math notation="LaTeX">$_{2}$ </tex-math></inline-formula> waveguide with a measured coupling efficiency of 96% at the wavelength of 1550 nm and <inline-formula><tex-math notation="LaTeX">$>$</tex-math></inline-formula>90% in the spectral range from 1450 to 1650 nm. Large horizontal and vertical alignment tolerances of 3.8 <inline-formula> <tex-math notation="LaTeX">$\mu \text{m}$</tex-math></inline-formula> and 3.6 <inline-formula> <tex-math notation="LaTeX">$\mu \text{m}$</tex-math></inline-formula>, respectively, are obtained between the fiber and the waveguide coupler. All these experimental results agree well with simulations. The waveguide coupler also features ease of end-facet cleaving and can be used in ultrabroadband high coupling efficiency applications.https://ieeexplore.ieee.org/document/7544563/Integrated optics devicesphotonic integrated circuitswaveguides |
| spellingShingle | Tiecheng Zhu Yiwen Hu Pradip Gatkine Sylvain Veilleux Joss Bland-Hawthorn Mario Dagenais Ultrabroadband High Coupling Efficiency Fiber-to-Waveguide Coupler Using Si<inline-formula> <tex-math notation="LaTeX">$_{3}$</tex-math></inline-formula>N<inline-formula><tex-math notation="LaTeX">$_{4}$ </tex-math></inline-formula>/SiO<inline-formula><tex-math notation="LaTeX">$_{2}$</tex-math></inline-formula> Waveguides on Silicon IEEE Photonics Journal Integrated optics devices photonic integrated circuits waveguides |
| title | Ultrabroadband High Coupling Efficiency Fiber-to-Waveguide Coupler Using Si<inline-formula> <tex-math notation="LaTeX">$_{3}$</tex-math></inline-formula>N<inline-formula><tex-math notation="LaTeX">$_{4}$ </tex-math></inline-formula>/SiO<inline-formula><tex-math notation="LaTeX">$_{2}$</tex-math></inline-formula> Waveguides on Silicon |
| title_full | Ultrabroadband High Coupling Efficiency Fiber-to-Waveguide Coupler Using Si<inline-formula> <tex-math notation="LaTeX">$_{3}$</tex-math></inline-formula>N<inline-formula><tex-math notation="LaTeX">$_{4}$ </tex-math></inline-formula>/SiO<inline-formula><tex-math notation="LaTeX">$_{2}$</tex-math></inline-formula> Waveguides on Silicon |
| title_fullStr | Ultrabroadband High Coupling Efficiency Fiber-to-Waveguide Coupler Using Si<inline-formula> <tex-math notation="LaTeX">$_{3}$</tex-math></inline-formula>N<inline-formula><tex-math notation="LaTeX">$_{4}$ </tex-math></inline-formula>/SiO<inline-formula><tex-math notation="LaTeX">$_{2}$</tex-math></inline-formula> Waveguides on Silicon |
| title_full_unstemmed | Ultrabroadband High Coupling Efficiency Fiber-to-Waveguide Coupler Using Si<inline-formula> <tex-math notation="LaTeX">$_{3}$</tex-math></inline-formula>N<inline-formula><tex-math notation="LaTeX">$_{4}$ </tex-math></inline-formula>/SiO<inline-formula><tex-math notation="LaTeX">$_{2}$</tex-math></inline-formula> Waveguides on Silicon |
| title_short | Ultrabroadband High Coupling Efficiency Fiber-to-Waveguide Coupler Using Si<inline-formula> <tex-math notation="LaTeX">$_{3}$</tex-math></inline-formula>N<inline-formula><tex-math notation="LaTeX">$_{4}$ </tex-math></inline-formula>/SiO<inline-formula><tex-math notation="LaTeX">$_{2}$</tex-math></inline-formula> Waveguides on Silicon |
| title_sort | ultrabroadband high coupling efficiency fiber to waveguide coupler using si inline formula tex math notation latex 3 tex math inline formula n inline formula tex math notation latex 4 tex math inline formula sio inline formula tex math notation latex 2 tex math inline formula waveguides on silicon |
| topic | Integrated optics devices photonic integrated circuits waveguides |
| url | https://ieeexplore.ieee.org/document/7544563/ |
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