Broadband 1 × 3 Couplers With Variable Splitting Ratio Using Cascaded Step-Size MMI
In this paper, we propose and fabricated a novel scheme of SOI-based 1 × 3 coupler with variable splitting ratio. The coupler consists of two cascaded MMI with different sizes, and a wide range of splitting ratios from 1:0.1:1 to 1:18:1 can be achieved by modifying the size of the first-s...
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| Format: | Article |
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IEEE
2018-01-01
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| Series: | IEEE Photonics Journal |
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| Online Access: | https://ieeexplore.ieee.org/document/8353137/ |
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| author | Ye Tian Jifang Qiu Mingbin Yu Zhuili Huang Yingying Qiao Zhenli Dong Jian Wu |
| author_facet | Ye Tian Jifang Qiu Mingbin Yu Zhuili Huang Yingying Qiao Zhenli Dong Jian Wu |
| author_sort | Ye Tian |
| collection | DOAJ |
| description | In this paper, we propose and fabricated a novel scheme of SOI-based 1 × 3 coupler with variable splitting ratio. The coupler consists of two cascaded MMI with different sizes, and a wide range of splitting ratios from 1:0.1:1 to 1:18:1 can be achieved by modifying the size of the first-step MMI. Using the structure of cascaded step-size MMI, this kind of device has a compact footprint of below 15 μm × 15 μm and simple fabrication process. Meanwhile, the simulation analyses prove that the proposed couplers have a large operation bandwidth above 60 nm and be robust to the fabrication errors. Couplers with several splitting ratios were fabricated and well measured. Based on the measurement results, the splitting ratios of fabricated couplers from 1:0.67:1 to 1:18:1 can be achieved, and stable performance with the transmission efficiencies above 80% can be maintained over 50 nm wavelength range, which is the largest operation bandwidth to the best of our knowledge. |
| format | Article |
| id | doaj-art-4e7e5bfbc012482a9d1b47dca567bd79 |
| institution | Matheson Library |
| issn | 1943-0655 |
| language | English |
| publishDate | 2018-01-01 |
| publisher | IEEE |
| record_format | Article |
| series | IEEE Photonics Journal |
| spelling | doaj-art-4e7e5bfbc012482a9d1b47dca567bd792025-07-01T23:36:44ZengIEEEIEEE Photonics Journal1943-06552018-01-011031810.1109/JPHOT.2018.28321888353137Broadband 1 × 3 Couplers With Variable Splitting Ratio Using Cascaded Step-Size MMIYe Tian0Jifang Qiu1https://orcid.org/0000-0003-2658-0675Mingbin Yu2Zhuili Huang3Yingying Qiao4Zhenli Dong5Jian Wu6https://orcid.org/0000-0003-1060-6412Key Laboratory of Information Photonics and Optical Communications, Beijing University of Posts and Telecommunications, Beijing, ChinaKey Laboratory of Information Photonics and Optical Communications, Beijing University of Posts and Telecommunications, Beijing, ChinaShanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Shanghai, ChinaKey Laboratory of Information Photonics and Optical Communications, Beijing University of Posts and Telecommunications, Beijing, ChinaKey Laboratory of Information Photonics and Optical Communications, Beijing University of Posts and Telecommunications, Beijing, ChinaKey Laboratory of Information Photonics and Optical Communications, Beijing University of Posts and Telecommunications, Beijing, ChinaKey Laboratory of Information Photonics and Optical Communications, Beijing University of Posts and Telecommunications, Beijing, ChinaIn this paper, we propose and fabricated a novel scheme of SOI-based 1 × 3 coupler with variable splitting ratio. The coupler consists of two cascaded MMI with different sizes, and a wide range of splitting ratios from 1:0.1:1 to 1:18:1 can be achieved by modifying the size of the first-step MMI. Using the structure of cascaded step-size MMI, this kind of device has a compact footprint of below 15 μm × 15 μm and simple fabrication process. Meanwhile, the simulation analyses prove that the proposed couplers have a large operation bandwidth above 60 nm and be robust to the fabrication errors. Couplers with several splitting ratios were fabricated and well measured. Based on the measurement results, the splitting ratios of fabricated couplers from 1:0.67:1 to 1:18:1 can be achieved, and stable performance with the transmission efficiencies above 80% can be maintained over 50 nm wavelength range, which is the largest operation bandwidth to the best of our knowledge.https://ieeexplore.ieee.org/document/8353137/Optical couplerssilicon photonics |
| spellingShingle | Ye Tian Jifang Qiu Mingbin Yu Zhuili Huang Yingying Qiao Zhenli Dong Jian Wu Broadband 1 × 3 Couplers With Variable Splitting Ratio Using Cascaded Step-Size MMI IEEE Photonics Journal Optical couplers silicon photonics |
| title | Broadband 1 × 3 Couplers With Variable Splitting Ratio Using Cascaded Step-Size MMI |
| title_full | Broadband 1 × 3 Couplers With Variable Splitting Ratio Using Cascaded Step-Size MMI |
| title_fullStr | Broadband 1 × 3 Couplers With Variable Splitting Ratio Using Cascaded Step-Size MMI |
| title_full_unstemmed | Broadband 1 × 3 Couplers With Variable Splitting Ratio Using Cascaded Step-Size MMI |
| title_short | Broadband 1 × 3 Couplers With Variable Splitting Ratio Using Cascaded Step-Size MMI |
| title_sort | broadband 1 x00d7 3 couplers with variable splitting ratio using cascaded step size mmi |
| topic | Optical couplers silicon photonics |
| url | https://ieeexplore.ieee.org/document/8353137/ |
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