Ultrawide-angle diffraction-limited 2D beam steering via hybrid integrated metasurface-photonic circuit
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arXiv
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| Main Authors: | , , , , , , , , , , , , , , |
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| Format: | Preprint |
| Published: |
2026
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| _version_ | 1866913032662155264 |
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| author | He, Zhiping Ranno, Luigi Burns, Padraic Yang, Fan Lin, Hung-I Peters, Maarten R. A. Zheng, Hanyu Chen, Rui Tan, Yi Ji Lian, Chuanyu Dostart, Nathan Kim, Hyun Jung Ríos, Carlos Gu, Tian Hu, Juejun |
| author_facet | He, Zhiping Ranno, Luigi Burns, Padraic Yang, Fan Lin, Hung-I Peters, Maarten R. A. Zheng, Hanyu Chen, Rui Tan, Yi Ji Lian, Chuanyu Dostart, Nathan Kim, Hyun Jung Ríos, Carlos Gu, Tian Hu, Juejun |
| contents | Two-dimensional (2D) wide field-of-view (FOV) beam steering is a key enabling capability for emerging free-space optical systems, including inter-satellite optical links, airborne LiDAR, point-to-point optical wireless communications, and collaborative robotic platforms. These applications require rapid acquisition and tracking across both azimuth and elevation; architectures that offer wide scanning in only one dimension while maintaining limited coverage in the orthogonal direction constrain link availability, coverage uniformity, and system agility. Here, we demonstrate a chip-scale platform for ultrawide-angle, diffraction-limited 2D beam steering based on hybrid integration of a silicon photonic integrated circuit (PIC) and an optical metasurface. A free-form micro-optical reflector efficiently transforms the guided waveguide mode into an expanded free-space beam that illuminates an analytically optimized ultrawide-FOV metasurface. The integrated system achieves a measured FOV exceeding 160° while maintaining diffraction-limited beam quality over a broad angular range at telecom wavelengths. This hybrid PIC-metasurface architecture provides a compact and scalable route to high-quality 2D beam steering and establishes a practical pathway toward integrated optical projectors for space-based optical communications and other applications requiring agile, wide-angle, high-fidelity beam control. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2604_13233 |
| institution | arXiv |
| publishDate | 2026 |
| record_format | arxiv |
| spellingShingle | Ultrawide-angle diffraction-limited 2D beam steering via hybrid integrated metasurface-photonic circuit He, Zhiping Ranno, Luigi Burns, Padraic Yang, Fan Lin, Hung-I Peters, Maarten R. A. Zheng, Hanyu Chen, Rui Tan, Yi Ji Lian, Chuanyu Dostart, Nathan Kim, Hyun Jung Ríos, Carlos Gu, Tian Hu, Juejun Optics Two-dimensional (2D) wide field-of-view (FOV) beam steering is a key enabling capability for emerging free-space optical systems, including inter-satellite optical links, airborne LiDAR, point-to-point optical wireless communications, and collaborative robotic platforms. These applications require rapid acquisition and tracking across both azimuth and elevation; architectures that offer wide scanning in only one dimension while maintaining limited coverage in the orthogonal direction constrain link availability, coverage uniformity, and system agility. Here, we demonstrate a chip-scale platform for ultrawide-angle, diffraction-limited 2D beam steering based on hybrid integration of a silicon photonic integrated circuit (PIC) and an optical metasurface. A free-form micro-optical reflector efficiently transforms the guided waveguide mode into an expanded free-space beam that illuminates an analytically optimized ultrawide-FOV metasurface. The integrated system achieves a measured FOV exceeding 160° while maintaining diffraction-limited beam quality over a broad angular range at telecom wavelengths. This hybrid PIC-metasurface architecture provides a compact and scalable route to high-quality 2D beam steering and establishes a practical pathway toward integrated optical projectors for space-based optical communications and other applications requiring agile, wide-angle, high-fidelity beam control. |
| title | Ultrawide-angle diffraction-limited 2D beam steering via hybrid integrated metasurface-photonic circuit |
| topic | Optics |
| url | https://arxiv.org/abs/2604.13233 |