• Photonics Research
  • Vol. 7, Issue 12, 1381 (2019)
Tianxiang Zheng1, Guangyue Shen1, Zhaohui Li1,3, Lei Yang1..., Haiyan Zhang1, E Wu1 and Guang Wu1,2,*|Show fewer author(s)
Author Affiliations
  • 1State Key Laboratory of Precision Spectroscopy, East China Normal University, Shanghai 200062, China
  • 2Collaborative Innovation Center of Extreme Optics, Shanxi University, Taiyuan 030006, China
  • 3e-mail: zhhli@lps.ecnu.edu.cn
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    DOI: 10.1364/PRJ.7.001381 Cite this Article Set citation alerts
    Tianxiang Zheng, Guangyue Shen, Zhaohui Li, Lei Yang, Haiyan Zhang, E Wu, Guang Wu, "Frequency-multiplexing photon-counting multi-beam LiDAR," Photonics Res. 7, 1381 (2019) Copy Citation Text show less

    Abstract

    We report a frequency-multiplexing method for multi-beam photon-counting light detection and ranging (LiDAR), where only one single-pixel single-photon detector is employed to simultaneously detect the multi-beam echoes. In this frequency-multiplexing multi-beam LiDAR, each beam is from an independent laser source with different repetition rates and independent phases. As a result, the photon counts from different beams could be discriminated from each other due to the strong correlation between the laser pulses and their respective echo photons. A 16-beam LiDAR system was demonstrated in three-dimensional laser imaging with 16 pulsed laser diodes at 850 nm and one single-photon detector based on a Si-avalanche photodiode. This frequency-multiplexing method can greatly reduce the number of single-photon detectors in multi-beam LiDAR systems, which may be useful for low-cost and eye-safe LiDAR applications.
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    Tianxiang Zheng, Guangyue Shen, Zhaohui Li, Lei Yang, Haiyan Zhang, E Wu, Guang Wu, "Frequency-multiplexing photon-counting multi-beam LiDAR," Photonics Res. 7, 1381 (2019)
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