This Letter introduces an anti-interference single-photon light detection and ranging (LiDAR) system with photon-driven stochastic pulse position modulation. A photon arrival sequence with a programmable minimum interval time and trigger rate was proposed to trigger laser pulses, thus providing true nature-based randomness in modulation which is beneficial for achieving better anti-interference capability. In the proposed LiDAR system, two complementary metal–oxide–semiconductor single-photon avalanche diodes (SPADs) are used as an optical receiver and to generate a random trigger pattern of a pulsed laser. To prevent the range ambiguity problem, an interval-time filter capable of controlling the minimum interval time is integrated into the LiDAR system. A trigger rate controller capable of adaptively controlling the driving voltage of a light-emitting diode coupled with the SPAD responsible for the generation of the random trigger sequence is also integrated for achieving a precise control of trigger rate. Finally, a proof-of-concept demonstration was provided through experiments, and the obtained results were consistent with theoretical predictions. At an effective trigger rate of 800 kHz, an excellent suppression ratio of 56.2 dB has been achieved in the presence of a 1 MHz periodic interference.

中文翻译：

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使用随机脉冲位置调制的抗干扰单光子LiDAR

这封信介绍了一种具有光子驱动的随机脉冲位置调制的抗干扰单光子光检测和测距（LiDAR）系统。提出了具有可编程的最小间隔时间和触发率的光子到达序列来触发激光脉冲，从而提供了基于调制的真实基于自然的随机性，这有利于获得更好的抗干扰能力。在提出的LiDAR系统中，两个互补的金属-氧化物-半导体单光子雪崩二极管（SPAD）用作光接收器，并生成脉冲激光的随机触发图案。为了防止范围模糊问题，将能够控制最小间隔时间的间隔时间滤波器集成到LiDAR系统中。集成了能够自适应地控制与负责随机触发序列生成的SPAD耦合的发光二极管的驱动电压的触发速率控制器，以实现对触发速率的精确控制。最后，通过实验提供了概念证明，结果与理论预测相符。在800 kHz的有效触发速率下，在存在1 MHz周期性干扰的情况下，实现了56.2 dB的出色抑制比。所得结果与理论预测相符。在800 kHz的有效触发速率下，在存在1 MHz周期性干扰的情况下，实现了56.2 dB的出色抑制比。所得结果与理论预测相符。在800 kHz的有效触发速率下，在存在1 MHz周期性干扰的情况下，实现了56.2 dB的出色抑制比。