红外与激光工程, 2017, 46 (7): 0706001, 网络出版: 2017-09-21   

准平行光干涉的激光干扰方案与实验研究

Laser jamming scheme and experiment research of quasi parallel light interference
作者单位
1 陆军军官学院 研究生管理大队, 安徽 合肥230031
2 陆军军官学院 军用光电工程教研室, 安徽 合肥230031
3 陆军军官学院 物理教研室, 安徽 合肥230031
摘要
提出一种利用准平行光干涉进行激光干扰的方案。在干涉理论分析的基础上, 利用He-Ne激光实验得到2路、3路、4路的多光束准平行光干涉图像与干涉强度极大值, 并仿真得出准平行光干涉图像和干涉光强分布。实验和仿真表明: 准平行光干涉的图样的形状取决于光束的方向角。在某些方向角时, 干涉视场的中央可出现干涉亮纹或亮斑。干涉条纹或干涉光斑之间的间距由两两光束之间的夹角所确定。在不大于0.5 mrad范围内, 两两光束间夹角的实验数据与仿真数据近似一致, 并且干涉亮纹或亮斑的强度极大值接近理论最大值, 即2束、3束、4束准平行光的干涉强度最大值分别是单束光强的4倍、8倍、15倍。给出干扰方案的效果评估以及干扰有效性的验证。
Abstract
A scheme for laser jamming using quasi parallel light interference was proposed. On the basis of the interference theoretical analysis, the multi-beam quasi parallel light interference images and interference intensity maximum value of two beams, three beams and four beams were obtained by He-Ne laser, and the interference images and the light intensity distribution were got by simulation. Both theoretical and experimental results show that the patterns of quasi parallel light interference images depend on beam direction angle. In certain direction angle, there is bright stripes or bright spots of interference in the middle of the interference field. The distance between interference stripes or spots is decided by the angle between two beams of light. When the value of the angle between two beams is no more than 0.5 mrad, the experiment data is consistent with the simulation data, and the interference intensity maximum is close to the result of theoretical maximum, that is the light intensity maximum of two, three and four beams of quasi parallel light interference are four, eight, fifteen times the size of the light intensity of single beam. The effect evaluation and the test of validity of laser jamming scheme were given.

陈飞, 柴金华, 刘欣. 准平行光干涉的激光干扰方案与实验研究[J]. 红外与激光工程, 2017, 46(7): 0706001. Chen Fei, Chai Jinhua, Liu Xin. Laser jamming scheme and experiment research of quasi parallel light interference[J]. Infrared and Laser Engineering, 2017, 46(7): 0706001.

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