High-Directionality Silicon Nitride Antenna Based on Distributed Bragg Reflector for Optical Phased Array
Optical phased arrays (OPAs) have great potential in the fields of integrated solid-state light detection and ranging. The ranging distance of an OPA can be further enlarged by improving the directionality of the grating antenna. A high-directionality silicon nitride grating antenna with a distribut...
| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2023-07-01
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| Series: | Photonics |
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| Online Access: | https://www.mdpi.com/2304-6732/10/8/871 |
| _version_ | 1827728856312709120 |
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| author | Jinmei Wei Yan Li Yuejun Zhang Tingge Dai Xiangyu Li Xiaowei Zhang Ying Wang |
| author_facet | Jinmei Wei Yan Li Yuejun Zhang Tingge Dai Xiangyu Li Xiaowei Zhang Ying Wang |
| author_sort | Jinmei Wei |
| collection | DOAJ |
| description | Optical phased arrays (OPAs) have great potential in the fields of integrated solid-state light detection and ranging. The ranging distance of an OPA can be further enlarged by improving the directionality of the grating antenna. A high-directionality silicon nitride grating antenna with a distributed Bragg reflector (DBR) is proposed. The DBR consists of a stack of silicon nitride and silicon dioxide layers, which are utilized as the bottom reflectors to further reduce downward radiation. In a simulation, the directionality of the antenna exceeded 71.6% within the wavelength range of 1420–1740 nm. Additionally, the directionality of the antenna can achieve 97.6% at 1550 nm. Compared to a grating antenna without a DBR, the directionality is improved by 1.52 dB. Moreover, the proposed silicon nitride grating antenna has a large fabrication tolerance and is compatible with CMOS fabrication techniques, showing great potential for enhancing the performance of the integrated optical phased array. |
| first_indexed | 2024-03-10T23:38:48Z |
| format | Article |
| id | doaj.art-a3ad1c1919dd4ce4861b0c293366b54e |
| institution | Directory Open Access Journal |
| issn | 2304-6732 |
| language | English |
| last_indexed | 2024-03-10T23:38:48Z |
| publishDate | 2023-07-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Photonics |
| spelling | doaj.art-a3ad1c1919dd4ce4861b0c293366b54e2023-11-19T02:38:58ZengMDPI AGPhotonics2304-67322023-07-0110887110.3390/photonics10080871High-Directionality Silicon Nitride Antenna Based on Distributed Bragg Reflector for Optical Phased ArrayJinmei Wei0Yan Li1Yuejun Zhang2Tingge Dai3Xiangyu Li4Xiaowei Zhang5Ying Wang6Faculty of Electrical Engineering and Computer Science, Ningbo University, Ningbo 315211, ChinaFaculty of Electrical Engineering and Computer Science, Ningbo University, Ningbo 315211, ChinaFaculty of Electrical Engineering and Computer Science, Ningbo University, Ningbo 315211, ChinaNingbo Innovation Center, Zhejiang University, Ningbo 315100, ChinaFaculty of Electrical Engineering and Computer Science, Ningbo University, Ningbo 315211, ChinaFaculty of Electrical Engineering and Computer Science, Ningbo University, Ningbo 315211, ChinaFaculty of Electrical Engineering and Computer Science, Ningbo University, Ningbo 315211, ChinaOptical phased arrays (OPAs) have great potential in the fields of integrated solid-state light detection and ranging. The ranging distance of an OPA can be further enlarged by improving the directionality of the grating antenna. A high-directionality silicon nitride grating antenna with a distributed Bragg reflector (DBR) is proposed. The DBR consists of a stack of silicon nitride and silicon dioxide layers, which are utilized as the bottom reflectors to further reduce downward radiation. In a simulation, the directionality of the antenna exceeded 71.6% within the wavelength range of 1420–1740 nm. Additionally, the directionality of the antenna can achieve 97.6% at 1550 nm. Compared to a grating antenna without a DBR, the directionality is improved by 1.52 dB. Moreover, the proposed silicon nitride grating antenna has a large fabrication tolerance and is compatible with CMOS fabrication techniques, showing great potential for enhancing the performance of the integrated optical phased array.https://www.mdpi.com/2304-6732/10/8/871grating antennashigh-directionalitysilicon nitridedistributed Bragg reflector |
| spellingShingle | Jinmei Wei Yan Li Yuejun Zhang Tingge Dai Xiangyu Li Xiaowei Zhang Ying Wang High-Directionality Silicon Nitride Antenna Based on Distributed Bragg Reflector for Optical Phased Array Photonics grating antennas high-directionality silicon nitride distributed Bragg reflector |
| title | High-Directionality Silicon Nitride Antenna Based on Distributed Bragg Reflector for Optical Phased Array |
| title_full | High-Directionality Silicon Nitride Antenna Based on Distributed Bragg Reflector for Optical Phased Array |
| title_fullStr | High-Directionality Silicon Nitride Antenna Based on Distributed Bragg Reflector for Optical Phased Array |
| title_full_unstemmed | High-Directionality Silicon Nitride Antenna Based on Distributed Bragg Reflector for Optical Phased Array |
| title_short | High-Directionality Silicon Nitride Antenna Based on Distributed Bragg Reflector for Optical Phased Array |
| title_sort | high directionality silicon nitride antenna based on distributed bragg reflector for optical phased array |
| topic | grating antennas high-directionality silicon nitride distributed Bragg reflector |
| url | https://www.mdpi.com/2304-6732/10/8/871 |
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