Mid-Infrared, Ultra-Broadband, Low-Loss, Compact Arbitrary Power Splitter Based on Adiabatic Mode Evolution
We designed and demonstrated TE-mode arbitrary power splitters based on adiabatic mode evolution. The power splitters are designed with a footprint of smaller than 12 × 2.9 <italic>μ</italic>m<sup>2</sup>, fabricated on a 400-nm silicon-on-insulator plat...
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| Format: | Article |
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IEEE
2019-01-01
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| Series: | IEEE Photonics Journal |
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| Online Access: | https://ieeexplore.ieee.org/document/8688691/ |
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| author | Jia Xu Brian Sia Wanjun Wang Xin Guo Jin Zhou Zecen Zhang Mohamed Said Rouifed Xiang Li Zhong Liang Qiao Chong Yang Liu Callum Littlejohns Graham T. Reed Hong Wang |
| author_facet | Jia Xu Brian Sia Wanjun Wang Xin Guo Jin Zhou Zecen Zhang Mohamed Said Rouifed Xiang Li Zhong Liang Qiao Chong Yang Liu Callum Littlejohns Graham T. Reed Hong Wang |
| author_sort | Jia Xu Brian Sia |
| collection | DOAJ |
| description | We designed and demonstrated TE-mode arbitrary power splitters based on adiabatic mode evolution. The power splitters are designed with a footprint of smaller than 12 × 2.9 <italic>μ</italic>m<sup>2</sup>, fabricated on a 400-nm silicon-on-insulator platform, requiring only a single etch step. The optimization process and the conditions for arbitrary-power splitting are performed using three-dimensional-FDTD simulations. We prove this concept through the fabrication of asymmetrical adiabatic evolution-based power splitters with splitting ratios of 50:50, 60:40, and 70:30. The fabricated devices are shown to agree closely with simulation results. Broadband operation with low insertion loss of 0.11–0.6 dB is demonstrated across the 3.66–3.89 <italic>μ</italic>m wavelength range (230 nm). This component has applications in a multitude of areas such as spectroscopic optical sensing and optical phased arrays photonic integrated circuits etc. |
| format | Article |
| id | doaj-art-eeaf35020f934d55bd732aa413e3255d |
| institution | Kabale University |
| issn | 1943-0655 |
| language | English |
| publishDate | 2019-01-01 |
| publisher | IEEE |
| record_format | Article |
| series | IEEE Photonics Journal |
| spelling | doaj-art-eeaf35020f934d55bd732aa413e3255d2025-08-20T03:32:50ZengIEEEIEEE Photonics Journal1943-06552019-01-0111211110.1109/JPHOT.2019.29077888688691Mid-Infrared, Ultra-Broadband, Low-Loss, Compact Arbitrary Power Splitter Based on Adiabatic Mode EvolutionJia Xu Brian Sia0Wanjun Wang1Xin Guo2Jin Zhou3Zecen Zhang4Mohamed Said Rouifed5Xiang Li6Zhong Liang Qiao7Chong Yang Liu8https://orcid.org/0000-0001-8045-2944Callum Littlejohns9Graham T. Reed10Hong Wang11https://orcid.org/0000-0002-2183-6865Novitas, Silicon Centre of Excellence, School of Electrical and Electronic Engineering, Nanyang Technological University, SingaporeNovitas, Silicon Centre of Excellence, School of Electrical and Electronic Engineering, Nanyang Technological University, SingaporeNovitas, Silicon Centre of Excellence, School of Electrical and Electronic Engineering, Nanyang Technological University, SingaporeNovitas, Silicon Centre of Excellence, School of Electrical and Electronic Engineering, Nanyang Technological University, SingaporeNovitas, Silicon Centre of Excellence, School of Electrical and Electronic Engineering, Nanyang Technological University, SingaporeNovitas, Silicon Centre of Excellence, School of Electrical and Electronic Engineering, Nanyang Technological University, SingaporeNovitas, Silicon Centre of Excellence, School of Electrical and Electronic Engineering, Nanyang Technological University, SingaporeNovitas, Silicon Centre of Excellence, School of Electrical and Electronic Engineering, Nanyang Technological University, SingaporeNovitas, Silicon Centre of Excellence, School of Electrical and Electronic Engineering, Nanyang Technological University, SingaporeNovitas, Silicon Centre of Excellence, School of Electrical and Electronic Engineering, Nanyang Technological University, SingaporeNovitas, Silicon Centre of Excellence, School of Electrical and Electronic Engineering, Nanyang Technological University, SingaporeNovitas, Silicon Centre of Excellence, School of Electrical and Electronic Engineering, Nanyang Technological University, SingaporeWe designed and demonstrated TE-mode arbitrary power splitters based on adiabatic mode evolution. The power splitters are designed with a footprint of smaller than 12 × 2.9 <italic>μ</italic>m<sup>2</sup>, fabricated on a 400-nm silicon-on-insulator platform, requiring only a single etch step. The optimization process and the conditions for arbitrary-power splitting are performed using three-dimensional-FDTD simulations. We prove this concept through the fabrication of asymmetrical adiabatic evolution-based power splitters with splitting ratios of 50:50, 60:40, and 70:30. The fabricated devices are shown to agree closely with simulation results. Broadband operation with low insertion loss of 0.11–0.6 dB is demonstrated across the 3.66–3.89 <italic>μ</italic>m wavelength range (230 nm). This component has applications in a multitude of areas such as spectroscopic optical sensing and optical phased arrays photonic integrated circuits etc.https://ieeexplore.ieee.org/document/8688691/Waveguidesmid infraredphotonic integrated circuitssilicon photonics |
| spellingShingle | Jia Xu Brian Sia Wanjun Wang Xin Guo Jin Zhou Zecen Zhang Mohamed Said Rouifed Xiang Li Zhong Liang Qiao Chong Yang Liu Callum Littlejohns Graham T. Reed Hong Wang Mid-Infrared, Ultra-Broadband, Low-Loss, Compact Arbitrary Power Splitter Based on Adiabatic Mode Evolution IEEE Photonics Journal Waveguides mid infrared photonic integrated circuits silicon photonics |
| title | Mid-Infrared, Ultra-Broadband, Low-Loss, Compact Arbitrary Power Splitter Based on Adiabatic Mode Evolution |
| title_full | Mid-Infrared, Ultra-Broadband, Low-Loss, Compact Arbitrary Power Splitter Based on Adiabatic Mode Evolution |
| title_fullStr | Mid-Infrared, Ultra-Broadband, Low-Loss, Compact Arbitrary Power Splitter Based on Adiabatic Mode Evolution |
| title_full_unstemmed | Mid-Infrared, Ultra-Broadband, Low-Loss, Compact Arbitrary Power Splitter Based on Adiabatic Mode Evolution |
| title_short | Mid-Infrared, Ultra-Broadband, Low-Loss, Compact Arbitrary Power Splitter Based on Adiabatic Mode Evolution |
| title_sort | mid infrared ultra broadband low loss compact arbitrary power splitter based on adiabatic mode evolution |
| topic | Waveguides mid infrared photonic integrated circuits silicon photonics |
| url | https://ieeexplore.ieee.org/document/8688691/ |
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