锑化铟光电探测器的远距离激光干扰研究

激光器性能(功率、波长、发散角等)、激光大气传输特性等直接影响激光对光电探测器的远距离干扰效果。测量得到锑化铟光电探测器的光谱响应曲线及饱和功率密度阈值曲线,利用MODTRAN软件分析了两种特定传输路径下大气传输透射率随激光波长的变化曲线。结合中红外波段激光器的发展现状,分析了特定激光器的大气传输透射率,计算得到了利用氟化氘激光器和光参量振荡器有效干扰锑化铟探测器所需的激光功率阈值。

Research of laser jamming on an InSb photodetector from long distance

The effect of laser jamming on photodetector from a long distance was influenced by the laser performances (laser power,wavelength,angle of divergence,et al) and the laser atmospheric transmission characteristics directly. The spectral response curve and the saturation threshold curve of power density of InSb photodetector were obtained by measurements. The atmospheric transmittance change curve with the laser wavelength under two specific transmission paths were analyzed by MODTRAN software. Combined with the development of mid-infrared laser,the atmospheric transmittance of several mid-infrared lasers was analyzed,and then the required power thresholds of the deuterium fluoride laser and optical parametric oscillator were calculated.