FMCW LiDAR based on integrated coherent receiver chip

Chengjie Xu; Chenyang Liu; Ruxue Wang; Aimin Wu

doi:10.1117/12.2690403

17 August 2023 FMCW LiDAR based on integrated coherent receiver chip

Chengjie Xu, Chenyang Liu, Ruxue Wang, Aimin Wu

Proceedings Volume 12757, 3rd International Conference on Laser, Optics, and Optoelectronic Technology (LOPET 2023); 127572X (2023) https://doi.org/10.1117/12.2690403
Event: 3rd International Conference on Laser, Optics and Optoelectronic Technology (LOPET 2023), 2023, Kunming, China

Abstract

Silicon photonics enables large-scale integration of Frequency Modulated Continuous Wave (FMCW) Light Detection and Ranging (LiDAR) system on silicon on insulator (SOI) substrate. In this paper, we set up an FMCW LiDAR system for a chip-scale coherent receiver chip based on a 3 µm SOI platform which has the advantages of low waveguide loss and high process tolerance. An iterative learning pre-distortion method is used for linear frequency sweep. With the home-built FMCW LiDAR system, we have achieved a detection range of 160 m with an accuracy of 0.3 m which pave the way for miniaturized LiDAR used for autonomous driving.

Citation Download Citation

Chengjie Xu, Chenyang Liu, Ruxue Wang, and Aimin Wu "FMCW LiDAR based on integrated coherent receiver chip", Proc. SPIE 12757, 3rd International Conference on Laser, Optics, and Optoelectronic Technology (LOPET 2023), 127572X (17 August 2023); https://doi.org/10.1117/12.2690403

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