The single-photon detection technique has unique advantages,such as high sensitivity,low timing jitter,and low power consumption.Thus,its applications in laser ranging and imaging are becoming increasingly widespread.In this paper,we introduce a low-cost high-precision single-photon ranging system,in which a narrow pulse laser generated by the laser diode with a pulse width of 160 ps and a low timing jitter single-photon detector based on a multi-pixel photon counter with a timing jitter of 417 ps are used to reduce the overall timing jitter of the system.The ranging experiment results show that within the 2-meter ranging range,the distance measurement accuracy of the single-photon ranging system could reach 370μm@RMS.The experimental device adopts a coaxial optical path design,with a simple structure and easy integration,providing a feasible solution for achieving a miniaturized,low-power,high-precision single photon ranging system.
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