Design of a compact single-photon LiDAR optical system for aerosol detection

Guan Chen; Xiaofei Wang; Xiaolei Zhang; Dongjie Ju; Haobo Li; Hua Fan

doi:10.1117/12.3007954

24 November 2023 Design of a compact single-photon LiDAR optical system for aerosol detection

Guan Chen, Xiaofei Wang, Xiaolei Zhang, Dongjie Ju, Haobo Li, Hua Fan

Proceedings Volume 12935, Fourteenth International Conference on Information Optics and Photonics (CIOP 2023); 1293549 (2023) https://doi.org/10.1117/12.3007954
Event: Fourteenth International Conference on Information Optics and Photonics (CIOP 2023), 2023, Xi’an, China

Abstract

A compact single-photon detection LiDAR optical system for aerosol detection with the bistatic and off-axis structure has been designed. This design overcomes the signal crosstalk associated with the transceiver optical system. The working wavelength of the telescope optical system is 1.55 μm. The transmitting telescope optical system has a clear aperture of 74 mm, an effective focal length of 17.780 mm, an object space NA of 0.09. Besides, its wavefront aberration RMS is 0.0000λ (λ=632.8 nm) which indicates that the light becomes nearly collimated after passing through the transmitting telescope optical system. The receiving telescope optical system has a clear aperture of 100 mm, an effective focal length of 271.106 mm, and an image space NA of 0.1814. Its root mean square radii are close to the diffraction limit, indicating minimal optical system aberrations and excellent imaging performance. Based on the design result, a prototype LiDAR system was constructed, and experiments have verified that the system can detect aerosols at distances of up to 7 km with signal-to-noise ratios of the echo photons greater than 1:1. The system exhibited stable and reliable operation.

(2023) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Guan Chen, Xiaofei Wang, Xiaolei Zhang, Dongjie Ju, Haobo Li, and Hua Fan "Design of a compact single-photon LiDAR optical system for aerosol detection", Proc. SPIE 12935, Fourteenth International Conference on Information Optics and Photonics (CIOP 2023), 1293549 (24 November 2023); https://doi.org/10.1117/12.3007954

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