Laser & Optoelectronics Progress, Volume. 61, Issue 4, 0428011(2024)

Study of Signal-Induced Noise in Single-Photon Ranging Lidar Systems

Yunbo Tu1,2, Xialin Liu1, Jia Qiang1, and Rong Shu1,2、*
Author Affiliations
  • 1Key Laboratory of Space Active Optical-Electro Technology, Shanghai Institute of Technical physics, Chinese Academy of Sciences, Shanghai 200083, China
  • 2School of Information Science and Technology, Shanghai Tech University, Shanghai 201210,China
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    For the single-photon ranging lidar system, the strong background light from both the emitted laser instantaneously and the backscattering of the near field will cause the photomultiplier to generate signal-induced noise (SIN), which seriously affects the detection of subsequent targets. In order to accurately calibrate the SIN at the single-photon level, a complete SIN detection and evaluation platform is built based on a self-developed single-photon ranging echo simulator and a pulsed laser with a fixed width of 10 ns. The induced noise under strong background light of different energy has been measured, and is also fitted using the relevant empirical formulas. According to the actual ranging system, the background light energy received at the detector should be less than 100 pJ in order to meet the signal-to-noise ratio requirement of 100 km-level ranging target inversion. This research provides an important reference for the performance evaluation of the single-photon ranging lidar system.

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    Yunbo Tu, Xialin Liu, Jia Qiang, Rong Shu. Study of Signal-Induced Noise in Single-Photon Ranging Lidar Systems[J]. Laser & Optoelectronics Progress, 2024, 61(4): 0428011

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    Paper Information

    Category: Remote Sensing and Sensors

    Received: Jan. 3, 2023

    Accepted: Feb. 6, 2023

    Published Online: Feb. 26, 2024

    The Author Email: Shu Rong (shurong@mail.sitp.ac.cn)

    DOI:10.3788/LOP230433

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