High sensitivity ranging photon-counting chirped amplitude modulation lidar

Yi-Fei Sun; Zhi-Yuan Wang; Zi-Jing Zhang; Yuan Zhao

doi:10.1117/12.2547675

18 December 2019 High sensitivity ranging photon-counting chirped amplitude modulation lidar

Yi-Fei Sun, Zhi-Yuan Wang, Zi-Jing Zhang, Yuan Zhao

Proceedings Volume 11339, AOPC 2019: Quantum Information Technology; 113390G (2019) https://doi.org/10.1117/12.2547675
Event: Applied Optics and Photonics China (AOPC2019), 2019, Beijing, China

Abstract

Traditional lidar is not effective in detecting small long-range targets with weak echo signals. Geiger-mode Avalanche Photodiode (Gm-APD) single photon detector has super high sensitivity. By adding photon orbital angular momentum modulation module, a photon-counting chirped amplitude modulation lidar with high sensitivity ranging function is designed. Based on the characteristics of photon orbital angular momentum space transmission, a special demodulation method is used to realize the spatial separation of noise and signal. The above scheme achieves the goal of high sensitivity ranging detection. The simulation results show that the scheme can improve the signal-to-noise ratio of the system effectively and realize the high-sensitivity ranging function of small target in long distance.

Citation Download Citation

Yi-Fei Sun, Zhi-Yuan Wang, Zi-Jing Zhang, and Yuan Zhao "High sensitivity ranging photon-counting chirped amplitude modulation lidar", Proc. SPIE 11339, AOPC 2019: Quantum Information Technology, 113390G (18 December 2019); https://doi.org/10.1117/12.2547675

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