Weak One-Dimensional Field Confinement Silica Waveguides
A novel weak one-dimensional field confinement silica waveguide (WCSW) with a large horizontal and vertical aspect ratio and low refractive index difference is proposed and fabricated via sol-gel technique. This new type of waveguide exhibits properties of high lithography tolerance, low polarizatio...
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| Format: | Article |
| Language: | English |
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IEEE
2020-01-01
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| Series: | IEEE Photonics Journal |
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| Online Access: | https://ieeexplore.ieee.org/document/9134915/ |
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| _version_ | 1839644773219041280 |
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| author | Chenming Zhao Lin Chen Lei Xu Liying Liu |
| author_facet | Chenming Zhao Lin Chen Lei Xu Liying Liu |
| author_sort | Chenming Zhao |
| collection | DOAJ |
| description | A novel weak one-dimensional field confinement silica waveguide (WCSW) with a large horizontal and vertical aspect ratio and low refractive index difference is proposed and fabricated via sol-gel technique. This new type of waveguide exhibits properties of high lithography tolerance, low polarization dependence, low propagation loss and low coupling loss with a single-mode fiber. More importantly, WCSW can provide extremely large evanescent field in vertical direction. The measured propagation loss and coupling loss are as low as 0.81 dB/cm and 0.71 dB/facet, respectively. In addition, high efficiency vertical coupling with a 1.9 <italic>μ</italic>m gap between a WCSW bus waveguide and a WCSW based high <italic>Q</italic> (5.4 × 10<sup>4</sup>) ring resonator is achieved, which demonstrates that vertical integration of WCSW is potentially applicable. |
| format | Article |
| id | doaj-art-f90b4c5721ec48d4947bf62ee74b4cd5 |
| institution | Matheson Library |
| issn | 1943-0655 |
| language | English |
| publishDate | 2020-01-01 |
| publisher | IEEE |
| record_format | Article |
| series | IEEE Photonics Journal |
| spelling | doaj-art-f90b4c5721ec48d4947bf62ee74b4cd52025-07-01T23:53:09ZengIEEEIEEE Photonics Journal1943-06552020-01-0112411110.1109/JPHOT.2020.30077219134915Weak One-Dimensional Field Confinement Silica WaveguidesChenming Zhao0Lin Chen1Lei Xu2Liying Liu3https://orcid.org/0000-0002-3042-6526Key Lab for Micro and Nanophotonic Structures (Ministry of Education), Department of Optical Science and Engineering, School of Information Science and Engineering, Fudan University, Shanghai, ChinaKey Lab for Micro and Nanophotonic Structures (Ministry of Education), Department of Optical Science and Engineering, School of Information Science and Engineering, Fudan University, Shanghai, ChinaKey Lab for Micro and Nanophotonic Structures (Ministry of Education), Department of Optical Science and Engineering, School of Information Science and Engineering, Fudan University, Shanghai, ChinaKey Lab for Micro and Nanophotonic Structures (Ministry of Education), Department of Optical Science and Engineering, School of Information Science and Engineering, Fudan University, Shanghai, ChinaA novel weak one-dimensional field confinement silica waveguide (WCSW) with a large horizontal and vertical aspect ratio and low refractive index difference is proposed and fabricated via sol-gel technique. This new type of waveguide exhibits properties of high lithography tolerance, low polarization dependence, low propagation loss and low coupling loss with a single-mode fiber. More importantly, WCSW can provide extremely large evanescent field in vertical direction. The measured propagation loss and coupling loss are as low as 0.81 dB/cm and 0.71 dB/facet, respectively. In addition, high efficiency vertical coupling with a 1.9 <italic>μ</italic>m gap between a WCSW bus waveguide and a WCSW based high <italic>Q</italic> (5.4 × 10<sup>4</sup>) ring resonator is achieved, which demonstrates that vertical integration of WCSW is potentially applicable.https://ieeexplore.ieee.org/document/9134915/Optical waveguideevanescent fieldoptical propertiesvertical coupling |
| spellingShingle | Chenming Zhao Lin Chen Lei Xu Liying Liu Weak One-Dimensional Field Confinement Silica Waveguides IEEE Photonics Journal Optical waveguide evanescent field optical properties vertical coupling |
| title | Weak One-Dimensional Field Confinement Silica Waveguides |
| title_full | Weak One-Dimensional Field Confinement Silica Waveguides |
| title_fullStr | Weak One-Dimensional Field Confinement Silica Waveguides |
| title_full_unstemmed | Weak One-Dimensional Field Confinement Silica Waveguides |
| title_short | Weak One-Dimensional Field Confinement Silica Waveguides |
| title_sort | weak one dimensional field confinement silica waveguides |
| topic | Optical waveguide evanescent field optical properties vertical coupling |
| url | https://ieeexplore.ieee.org/document/9134915/ |
| work_keys_str_mv | AT chenmingzhao weakonedimensionalfieldconfinementsilicawaveguides AT linchen weakonedimensionalfieldconfinementsilicawaveguides AT leixu weakonedimensionalfieldconfinementsilicawaveguides AT liyingliu weakonedimensionalfieldconfinementsilicawaveguides |