2D Optical Beam Scanning using Integrated Acousto-Optics and a Frequency Comb
Fuente:
arXiv
Saved in:
| Main Authors: | , , , , , , , |
|---|---|
| Format: | Preprint |
| Published: |
2026
|
| Subjects: | |
| Online Access: | |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1866917463139024896 |
|---|---|
| author | Fang, Shucheng Lin, Qixuan Yang, Fengyan Yu, Yue Yang, Guangcanlan Li, Bingzhao Tang, Hong X. Li, Mo |
| author_facet | Fang, Shucheng Lin, Qixuan Yang, Fengyan Yu, Yue Yang, Guangcanlan Li, Bingzhao Tang, Hong X. Li, Mo |
| contents | Optical beam steering is an essential technology for free-space optical communication, reconfigurable optical networks and quantum information systems. Yet conventional steering methods either require bulky mechanical mechanisms, or rely on complex arrays of individually controlled light emitting elements. Integrated acousto-optic beam steering (AOBS) offers non-mechanical, continuous one-dimensional steering on-chip by using traveling acoustic waves with variable frequency to deflect light. In this work, we combine AOBS with an optical frequency comb and optical gratings to enable two-dimensional beam steering from a single aperture. Azimuthal scanning is controlled via acoustic frequency while polar coverage is realized by dispersing frequency comb lines with the gratings. We demonstrate this architecture by sequentially selecting and steering 11 comb lines spanning 1540-1570 nm, achieving a field of view of 18.2 by 4.3 degrees. Validation with a tunable laser extends polar coverage to 11.4 degrees. Both components are realized on the same thin-film lithium niobate platform, providing a pathway toward monolithic integration. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2605_04287 |
| institution | arXiv |
| publishDate | 2026 |
| record_format | arxiv |
| spellingShingle | 2D Optical Beam Scanning using Integrated Acousto-Optics and a Frequency Comb Fang, Shucheng Lin, Qixuan Yang, Fengyan Yu, Yue Yang, Guangcanlan Li, Bingzhao Tang, Hong X. Li, Mo Optics Optical beam steering is an essential technology for free-space optical communication, reconfigurable optical networks and quantum information systems. Yet conventional steering methods either require bulky mechanical mechanisms, or rely on complex arrays of individually controlled light emitting elements. Integrated acousto-optic beam steering (AOBS) offers non-mechanical, continuous one-dimensional steering on-chip by using traveling acoustic waves with variable frequency to deflect light. In this work, we combine AOBS with an optical frequency comb and optical gratings to enable two-dimensional beam steering from a single aperture. Azimuthal scanning is controlled via acoustic frequency while polar coverage is realized by dispersing frequency comb lines with the gratings. We demonstrate this architecture by sequentially selecting and steering 11 comb lines spanning 1540-1570 nm, achieving a field of view of 18.2 by 4.3 degrees. Validation with a tunable laser extends polar coverage to 11.4 degrees. Both components are realized on the same thin-film lithium niobate platform, providing a pathway toward monolithic integration. |
| title | 2D Optical Beam Scanning using Integrated Acousto-Optics and a Frequency Comb |
| topic | Optics |
| url | https://arxiv.org/abs/2605.04287 |