On-chip wavelength division multiplexing filters using extremely efficient gate-driven silicon microring resonator array
Abstract Silicon microring resonators (Si-MRRs) play essential roles in on-chip wavelength division multiplexing (WDM) systems due to their ultra-compact size and low energy consumption. However, the resonant wavelength of Si-MRRs is very sensitive to temperature fluctuations and fabrication process...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Nature Portfolio
2023-03-01
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| Series: | Scientific Reports |
| Online Access: | https://doi.org/10.1038/s41598-023-32313-0 |
| _version_ | 1797853794750431232 |
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| author | Wei-Che Hsu Nabila Nujhat Benjamin Kupp John F. Conley Alan X. Wang |
| author_facet | Wei-Che Hsu Nabila Nujhat Benjamin Kupp John F. Conley Alan X. Wang |
| author_sort | Wei-Che Hsu |
| collection | DOAJ |
| description | Abstract Silicon microring resonators (Si-MRRs) play essential roles in on-chip wavelength division multiplexing (WDM) systems due to their ultra-compact size and low energy consumption. However, the resonant wavelength of Si-MRRs is very sensitive to temperature fluctuations and fabrication process variation. Typically, each Si-MRR in the WDM system requires precise wavelength control by free carrier injection using PIN diodes or thermal heaters that consume high power. This work experimentally demonstrates gate-tuning on-chip WDM filters for the first time with large wavelength coverage for the entire channel spacing using a Si-MRR array driven by high mobility titanium-doped indium oxide (ITiO) gates. The integrated Si-MRRs achieve unprecedented wavelength tunability up to 589 pm/V, or VπL of 0.050 V cm with a high-quality factor of 5200. The on-chip WDM filters, which consist of four cascaded ITiO-driven Si-MRRs, can be continuously tuned across the 1543–1548 nm wavelength range by gate biases with near-zero power consumption. |
| first_indexed | 2024-04-09T19:56:37Z |
| format | Article |
| id | doaj.art-90c6f37e655141bd90f3e67ea44b4be9 |
| institution | Directory Open Access Journal |
| issn | 2045-2322 |
| language | English |
| last_indexed | 2024-04-09T19:56:37Z |
| publishDate | 2023-03-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Scientific Reports |
| spelling | doaj.art-90c6f37e655141bd90f3e67ea44b4be92023-04-03T05:27:50ZengNature PortfolioScientific Reports2045-23222023-03-011311710.1038/s41598-023-32313-0On-chip wavelength division multiplexing filters using extremely efficient gate-driven silicon microring resonator arrayWei-Che Hsu0Nabila Nujhat1Benjamin Kupp2John F. Conley3Alan X. Wang4School of Electrical Engineering and Computer Science, Oregon State UniversitySchool of Electrical Engineering and Computer Science, Oregon State UniversitySchool of Electrical Engineering and Computer Science, Oregon State UniversitySchool of Electrical Engineering and Computer Science, Oregon State UniversitySchool of Electrical Engineering and Computer Science, Oregon State UniversityAbstract Silicon microring resonators (Si-MRRs) play essential roles in on-chip wavelength division multiplexing (WDM) systems due to their ultra-compact size and low energy consumption. However, the resonant wavelength of Si-MRRs is very sensitive to temperature fluctuations and fabrication process variation. Typically, each Si-MRR in the WDM system requires precise wavelength control by free carrier injection using PIN diodes or thermal heaters that consume high power. This work experimentally demonstrates gate-tuning on-chip WDM filters for the first time with large wavelength coverage for the entire channel spacing using a Si-MRR array driven by high mobility titanium-doped indium oxide (ITiO) gates. The integrated Si-MRRs achieve unprecedented wavelength tunability up to 589 pm/V, or VπL of 0.050 V cm with a high-quality factor of 5200. The on-chip WDM filters, which consist of four cascaded ITiO-driven Si-MRRs, can be continuously tuned across the 1543–1548 nm wavelength range by gate biases with near-zero power consumption.https://doi.org/10.1038/s41598-023-32313-0 |
| spellingShingle | Wei-Che Hsu Nabila Nujhat Benjamin Kupp John F. Conley Alan X. Wang On-chip wavelength division multiplexing filters using extremely efficient gate-driven silicon microring resonator array Scientific Reports |
| title | On-chip wavelength division multiplexing filters using extremely efficient gate-driven silicon microring resonator array |
| title_full | On-chip wavelength division multiplexing filters using extremely efficient gate-driven silicon microring resonator array |
| title_fullStr | On-chip wavelength division multiplexing filters using extremely efficient gate-driven silicon microring resonator array |
| title_full_unstemmed | On-chip wavelength division multiplexing filters using extremely efficient gate-driven silicon microring resonator array |
| title_short | On-chip wavelength division multiplexing filters using extremely efficient gate-driven silicon microring resonator array |
| title_sort | on chip wavelength division multiplexing filters using extremely efficient gate driven silicon microring resonator array |
| url | https://doi.org/10.1038/s41598-023-32313-0 |
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