Simultaneous Enhancement of Viewing Angle and Angular Resolution of Integrated Lidar With Bidirectional Signals and Orthogonal Polarizations
Coarse wavelength division multiplexing (CWDM) technology has been widely used in short-reach optical communication systems. By using the same technology in a solid-state photonics-based Lidar, one can achieve significant cost reduction. Beam steering is realized through diffraction of light wave up...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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IEEE
2024-01-01
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| Series: | IEEE Access |
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| Online Access: | https://ieeexplore.ieee.org/document/10428013/ |
| _version_ | 1797305324073385984 |
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| author | Yuxuan He Qiang Wang Wenpu Geng Yuxi Fang Zhongqi Pan Yang Yue |
| author_facet | Yuxuan He Qiang Wang Wenpu Geng Yuxi Fang Zhongqi Pan Yang Yue |
| author_sort | Yuxuan He |
| collection | DOAJ |
| description | Coarse wavelength division multiplexing (CWDM) technology has been widely used in short-reach optical communication systems. By using the same technology in a solid-state photonics-based Lidar, one can achieve significant cost reduction. Beam steering is realized through diffraction of light wave upon grating couplers. However, current design has a small viewing angle and a low angular resolution. We propose a configuration based on Silicon-on-Insulator (SOI) waveguide grating coupler. The viewing angle is increased by 2.5 times with light signals propagating bidirectionally. The angular resolution is doubled through interleaving beams with trans-electrical (TE) polarization and beams with trans-magnetic (TM) polarization. By optimizing the design of a single grating coupler, the output beams are evenly distributed and the transmittance is improved. With 4 CWDM lasers being the source, a 34° beam angle of view and an angular resolution of 1.9° are demonstrated. |
| first_indexed | 2024-03-08T00:25:15Z |
| format | Article |
| id | doaj.art-d763eb1197ac46e78382272c1963b1f2 |
| institution | Directory Open Access Journal |
| issn | 2169-3536 |
| language | English |
| last_indexed | 2024-03-08T00:25:15Z |
| publishDate | 2024-01-01 |
| publisher | IEEE |
| record_format | Article |
| series | IEEE Access |
| spelling | doaj.art-d763eb1197ac46e78382272c1963b1f22024-02-16T00:00:47ZengIEEEIEEE Access2169-35362024-01-0112221222213110.1109/ACCESS.2024.336407710428013Simultaneous Enhancement of Viewing Angle and Angular Resolution of Integrated Lidar With Bidirectional Signals and Orthogonal PolarizationsYuxuan He0https://orcid.org/0000-0001-5677-2729Qiang Wang1Wenpu Geng2https://orcid.org/0000-0002-0989-5918Yuxi Fang3https://orcid.org/0000-0003-1736-484XZhongqi Pan4https://orcid.org/0000-0003-2325-2254Yang Yue5https://orcid.org/0000-0002-8945-330XInstitute of Modern Optics, Nankai University, Tianjin, ChinaAngle AI (Tianjin) Technology Company Ltd., Tianjin, ChinaInstitute of Modern Optics, Nankai University, Tianjin, ChinaInstitute of Modern Optics, Nankai University, Tianjin, ChinaDepartment of Electrical and Computer Engineering, University of Louisiana at Lafayette, Lafayette, LA, USASchool of Information and Communications Engineering, Xi’an Jiaotong University, Xi’an, ChinaCoarse wavelength division multiplexing (CWDM) technology has been widely used in short-reach optical communication systems. By using the same technology in a solid-state photonics-based Lidar, one can achieve significant cost reduction. Beam steering is realized through diffraction of light wave upon grating couplers. However, current design has a small viewing angle and a low angular resolution. We propose a configuration based on Silicon-on-Insulator (SOI) waveguide grating coupler. The viewing angle is increased by 2.5 times with light signals propagating bidirectionally. The angular resolution is doubled through interleaving beams with trans-electrical (TE) polarization and beams with trans-magnetic (TM) polarization. By optimizing the design of a single grating coupler, the output beams are evenly distributed and the transmittance is improved. With 4 CWDM lasers being the source, a 34° beam angle of view and an angular resolution of 1.9° are demonstrated.https://ieeexplore.ieee.org/document/10428013/Beam steeringgratingwavelength division multiplexingsilicon photonics |
| spellingShingle | Yuxuan He Qiang Wang Wenpu Geng Yuxi Fang Zhongqi Pan Yang Yue Simultaneous Enhancement of Viewing Angle and Angular Resolution of Integrated Lidar With Bidirectional Signals and Orthogonal Polarizations IEEE Access Beam steering grating wavelength division multiplexing silicon photonics |
| title | Simultaneous Enhancement of Viewing Angle and Angular Resolution of Integrated Lidar With Bidirectional Signals and Orthogonal Polarizations |
| title_full | Simultaneous Enhancement of Viewing Angle and Angular Resolution of Integrated Lidar With Bidirectional Signals and Orthogonal Polarizations |
| title_fullStr | Simultaneous Enhancement of Viewing Angle and Angular Resolution of Integrated Lidar With Bidirectional Signals and Orthogonal Polarizations |
| title_full_unstemmed | Simultaneous Enhancement of Viewing Angle and Angular Resolution of Integrated Lidar With Bidirectional Signals and Orthogonal Polarizations |
| title_short | Simultaneous Enhancement of Viewing Angle and Angular Resolution of Integrated Lidar With Bidirectional Signals and Orthogonal Polarizations |
| title_sort | simultaneous enhancement of viewing angle and angular resolution of integrated lidar with bidirectional signals and orthogonal polarizations |
| topic | Beam steering grating wavelength division multiplexing silicon photonics |
| url | https://ieeexplore.ieee.org/document/10428013/ |
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