影响激光监听效果的因素研究

Study on the factors influencing the effect of laser monitoring

通过实验研究了影响激光监听效果的因素,包括激光光斑在硅光电池上的位置、光斑聚焦程度和环境光照强度等。结果发现,监听效果强烈依赖于光斑在硅光电池上的位置,当二分之一光斑面积照射在硅光电池边缘时,效果最好。监听效果与激光的聚焦程度有关,聚焦程度越高,监听效果越好。一定范围内,激光监听效果与外界光照强度基本没有关系。

Based on the experiments of laser monitor,the effect of several factors on the monitor effect is studied.We considered the position of laser spot on the silicon photocell,the focus degree of laser spot,and the ambient light intensity.The results show that when the laser focus is high and half of the spot area falls on the edge of the silicon photocell the monitoring effect is better.In addition,we found that the monitor effect is independent of the ambient light intensity.