为了研究海洋湍流对单光子捕获概率的影响,基于模厄米高斯光束和Nikishov海洋湍流模型,根据Rytov近似和Kolmogorov谱,推导出了海洋湍流环境下的单光子捕获概率模型,并对不同海洋湍流参数对单光子捕获概率的影响进行了分析。结果表明:在传播百米后,海洋湍流环境下的单光子捕获概率下降明显;随着温度方差耗散率的增大,单光子捕获概率降低;当盐度因素主导海洋湍流时,单光子捕获概率也随盐度的增大而降低,盐度变化对海洋湍流环境下的单光子捕获概率的影响显著。增大接收机孔径值与缩短脉冲间隔可以有效提升单光子捕获概率,但温度方差耗散率的增加和传输距离的减少会降低脉冲间隔对单光子捕获概率的影响。

To investigate the influence of oceanic turbulence on single photon capture probability, this paper derives the single photon capture probability model in the turbulent ocean environment. The entire research is based on Hermite Gaussian beam and Nikishov oceanic turbulence model and follows the rules of Rytov approximation and Kolmogorov spectrum. The influence of different oceanic turbulence parameters on single photon capture probability is also analyzed. The results show that the single photon capture probability decreases significantly after one hundred meters of transmission in the turbulent ocean environment. Besides, as the temperature variance dissipation rate increases, the single photon capture probability decreases. When the salinity factor dominates the oceanic turbulence, the single photon capture probability also decreases and the salinity change has a significant impact on the single photon capture probability of the turbulent ocean environment. Increasing the receiver aperture value and shortening the pulse interval can effectively improve the single photon capture probability. However, an increase in the temperature variance dissipation rate and a decrease in the transmission distance can reduce the influence of the pulse interval on the single photon capture probability.