摘要
分别采用1 064 nm连续激光、不同高重频激光对可见光CCD探测器进行了干扰实验,观察到CCD的串扰、饱和以及高重频激光作用时产生的横向亮线等一系列干扰现象。同时测量计算了各种干扰现象相应的激光功率,研究了阈值功率与重频之间的关系,进一步分析了高重频激光的干扰机理。实验表明:重频激光与连续激光具有不同的干扰现象,重频激光的干扰效果没有连续激光好,使CCD传感器发生全屏饱和、全屏灰屏所需要的阈值功率比连续激光要高。
The experiment that visible CCD was irradiated by 1 064 nm CW laser, laser of different high pulse repetitive frequency （PRF） were carried out individually. The disturbance phenomenon of crosstalk, saturation, and horizontal bright line were observed. The laser power of each disturbance state was measured, and the relationship between PRF and threshold power is also studied. Furthermore, the damage mechanisms of high PRF laser were analyzed in details. The results showed that the disturbance phenomenon of high PRF laser differed from the disturbance phenomenon of CW laser, and high PRF laser had unimportant influence on laser disturbing effect compare to CW laser. It was concluded that the threshold power of full-screen saturation and all-field gray screen irradiated by repetitive frequency laser were higher than that of CW laser.
出处
《红外与激光工程》
EI
CSCD
北大核心
2013年第S02期387-390,共4页
Infrared and Laser Engineering
基金
国家973计划项目
关键词
激光干扰
高重频激光
可见光CCD探测器
阈值功率
laser disturbing laser of high pulse repetitive frequency visible CCD detector threshold power
