Broadband Polarization-Independent Edge Couplers With High Efficiency Based on SiN-Si Dual-Stage Structure
Silicon nitride (SiN) plays a critical role in silicon photonics because of its lower refractive index, low waveguide loss, broad operating bandwidth and compatibility with complementary metal oxide semiconductor (CMOS) fabrication process. Here, we propose a polarization-independent sub-wavelength...
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| Format: | Article |
| Language: | English |
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IEEE
2024-01-01
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| Series: | IEEE Photonics Journal |
| Subjects: | |
| Online Access: | https://ieeexplore.ieee.org/document/10476676/ |
| _version_ | 1797231248666525696 |
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| author | Yang Jiang Zhewei Zhang Peng Liu |
| author_facet | Yang Jiang Zhewei Zhang Peng Liu |
| author_sort | Yang Jiang |
| collection | DOAJ |
| description | Silicon nitride (SiN) plays a critical role in silicon photonics because of its lower refractive index, low waveguide loss, broad operating bandwidth and compatibility with complementary metal oxide semiconductor (CMOS) fabrication process. Here, we propose a polarization-independent sub-wavelength grating (SWG) edge coupler with high efficiency based on SiN-Si dual-stage structure with a length of only 315.8 μm. Such a structure can be fabricated on 8-inch silicon photonics pilot lines and doesn't require special fabrication processes for making it suspended. We simulate the minimum TE/TM light coupling loss from a standard SMF-28 fiber to be 0.61 dB/0.95 dB with polarization dependent loss (PDL) less than 0.4 dB in the whole band between 1500 nm and 1600 nm. |
| first_indexed | 2024-04-24T15:41:22Z |
| format | Article |
| id | doaj.art-1264b7e45879483d8222b2f85d9d1f63 |
| institution | Directory Open Access Journal |
| issn | 1943-0655 |
| language | English |
| last_indexed | 2024-04-24T15:41:22Z |
| publishDate | 2024-01-01 |
| publisher | IEEE |
| record_format | Article |
| series | IEEE Photonics Journal |
| spelling | doaj.art-1264b7e45879483d8222b2f85d9d1f632024-04-01T23:00:13ZengIEEEIEEE Photonics Journal1943-06552024-01-011621710.1109/JPHOT.2024.337956310476676Broadband Polarization-Independent Edge Couplers With High Efficiency Based on SiN-Si Dual-Stage StructureYang Jiang0https://orcid.org/0000-0001-7419-0802Zhewei Zhang1https://orcid.org/0009-0001-4697-0518Peng Liu2State Key Laboratory of High Field Laser Physics and CAS Center for Excellence in Ultra-intense Laser Science, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai, ChinaZhangjiang Laboratory, Shanghai, ChinaState Key Laboratory of High Field Laser Physics and CAS Center for Excellence in Ultra-intense Laser Science, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai, ChinaSilicon nitride (SiN) plays a critical role in silicon photonics because of its lower refractive index, low waveguide loss, broad operating bandwidth and compatibility with complementary metal oxide semiconductor (CMOS) fabrication process. Here, we propose a polarization-independent sub-wavelength grating (SWG) edge coupler with high efficiency based on SiN-Si dual-stage structure with a length of only 315.8 μm. Such a structure can be fabricated on 8-inch silicon photonics pilot lines and doesn't require special fabrication processes for making it suspended. We simulate the minimum TE/TM light coupling loss from a standard SMF-28 fiber to be 0.61 dB/0.95 dB with polarization dependent loss (PDL) less than 0.4 dB in the whole band between 1500 nm and 1600 nm.https://ieeexplore.ieee.org/document/10476676/Edge couplersilicon nitrideSiN-Si dual-stage structuresub-wavelength grating |
| spellingShingle | Yang Jiang Zhewei Zhang Peng Liu Broadband Polarization-Independent Edge Couplers With High Efficiency Based on SiN-Si Dual-Stage Structure IEEE Photonics Journal Edge coupler silicon nitride SiN-Si dual-stage structure sub-wavelength grating |
| title | Broadband Polarization-Independent Edge Couplers With High Efficiency Based on SiN-Si Dual-Stage Structure |
| title_full | Broadband Polarization-Independent Edge Couplers With High Efficiency Based on SiN-Si Dual-Stage Structure |
| title_fullStr | Broadband Polarization-Independent Edge Couplers With High Efficiency Based on SiN-Si Dual-Stage Structure |
| title_full_unstemmed | Broadband Polarization-Independent Edge Couplers With High Efficiency Based on SiN-Si Dual-Stage Structure |
| title_short | Broadband Polarization-Independent Edge Couplers With High Efficiency Based on SiN-Si Dual-Stage Structure |
| title_sort | broadband polarization independent edge couplers with high efficiency based on sin si dual stage structure |
| topic | Edge coupler silicon nitride SiN-Si dual-stage structure sub-wavelength grating |
| url | https://ieeexplore.ieee.org/document/10476676/ |
| work_keys_str_mv | AT yangjiang broadbandpolarizationindependentedgecouplerswithhighefficiencybasedonsinsidualstagestructure AT zheweizhang broadbandpolarizationindependentedgecouplerswithhighefficiencybasedonsinsidualstagestructure AT pengliu broadbandpolarizationindependentedgecouplerswithhighefficiencybasedonsinsidualstagestructure |