XeF激光与YAG倍频激光对CCD软破坏效应对比实验研究

Contrastive experimental research of soft-damage on CCD irradiated by XeF laser and YAG frequency-doubled laser

摘要: 为了对比研究XeF(C-A)激光和YAG倍频激光对可见光面阵CCD的软破坏效应,分别建立了XeF(C-A)激光和YAG倍频激光对可见光面阵CCD辐照效应实验研究平台和CCD图像同步采集系统,在此基础上开展了上述两种激光对CCD的辐照效应实验,获得了CCD出现局部饱和、全饱和、串音以及全屏饱和时的激光能量密度阈值和CCD图像,并对实验数据进行了总结分析,采用激光能量密度阈值法和饱和面积法对CCD图像进行了分析处理。结果表明,两种激光对SONY SUPER HAD型CCD具有相同的软破坏效应。

Abstract: In order to study the effects on visible CCD array irradiated by XeF(C-A) laser and YAG frequency-doubled laser,the experimental platform for pulse laser radiating CCD and CCD synchronous image-acquiring system were set up.Based on the experimental platform and the acquiring system,the radiating effect experiments on CCD by the both lasers were carried out,laser energy thresholds and CCD images under soft damage (including local saturation,full saturation,saturation crosstalk,full-screen saturation) were acquired.The data and CCD images were processed and analyzed by means of laser energy density threshold method and saturated area method respectively.The results show that XeF(C-A) blue-green laser and YAG frequencydoubled laser have the same radiating effects on SONY SUPER HAD visible CCD array.