采用重频1 kHz, 脉宽分别为30 ps、100 ns以及4 ns(皮秒脉冲串, 单脉宽30 ps)的532 nm激光辐照面阵CCD器件, 观察到了CCD从线性响应到像元饱和、饱和串扰直至损伤的全过程, 获得了激光辐照CCD的饱和阈值和破坏阈值。实验表明, 皮秒脉冲串激光干扰效果明显优于普通皮秒激光, 获得相同干扰效果时, 皮秒脉冲串激光所需的功率密度要低1~2数量级。

Three 532 nm pulsed lasers with different pulse width 30 ps, 100 ns and 4 ns and the same repetition frequency of 1 kHz are used to radiate CCD. The whole phenomena from linear responding, image element saturation, saturation cross talk and damage are observed. The thresholds of saturation and damage are obtained. Experimental results show that the jamming effect induced by picosecond pulse sequence laser is better than that of ordinary picosecond pulse laser, and the power density of picosecond pulse sequence laser is lower than that of picosecond pulse laser for 1~2 orders of magnitude while the same jamming effect is obtained.