Opto-Electronic Engineering, Volume. 51, Issue 3, 230287-1(2024)

Design of short-range LiDAR receiver based on MEMS mirror

Suisui Wan1...2, Yajun Pang1,2,*, Ruixiang Xue1,2, and Zhenxu Bai12 |Show fewer author(s)
Author Affiliations
  • 1Center for Advanced Laser Technology, Hebei University of Technology, Tianjin 300401, China
  • 2Hebei Key Laboratory of Advanced Laser Technology and Equipment, Tianjin 300401, China
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    To address the ineffective reception of larger scanning field echoes by the small photosensitive area of the indium gallium arsenide InGaAs detector in the 1550 nm wavelength band, a receiver device suitable for near-range wide field-of-view applications has been designed. The optical system at the receiving end utilizes an afocal telecentric structure as the receiving antenna, achieving a reception field-of-view of 36° at a photosensitive area of 1 mm. The relative illuminance exceeds 95%, demonstrating excellent light collection and transmission characteristics. Additionally, the receiver circuit adopts a T-network amplification structure combined with a moment identification circuit, utilizing the TDC7200 to achieve high-precision time measurements. The flight time measurement accuracy is less than 120 ps within a range of 200 ns, and the experimental results demonstrate ranging accuracy better than 2 ns within an 8 m distance, meeting the requirements for near-range detection.

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    Suisui Wan, Yajun Pang, Ruixiang Xue, Zhenxu Bai. Design of short-range LiDAR receiver based on MEMS mirror[J]. Opto-Electronic Engineering, 2024, 51(3): 230287-1

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    Paper Information

    Category: Article

    Received: Nov. 22, 2023

    Accepted: Feb. 22, 2024

    Published Online: Jul. 8, 2024

    The Author Email: Pang Yajun (庞亚军)

    DOI:10.12086/oee.2024.230287

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