小口径炮激光模拟器光束传输特性的研究

A Study on Laser Transmission in the Atmosphere for the Simulator for Small Caliber Guns

本文采用多横模振荡模型,对小口径炮激光模拟器光束传输特性进行了分析,导出了射程及光斑大小与激光功率、探测器阈值辐照度、光学系统及大气衰减的关系。并根据现有条件用计算机进行了计算,给出了激光传输过程中光斑分布的理论曲线。在此基础上进行了实地测量,实验值与理论曲线基本吻合。本文对激光模拟器的研制和应用具有一定的参考价值。

This paper uses the multimode beam model to describe the laser transmission in the atmosphere for the laser simulator for small calibre guns.The relationship between the effective range,the beam diame- ter and the laser power,the optical system,the attenuation coefficient is derived.Based on the analy- sis,a laser simulator is designed.A theoretical distribution curve of the beam diameter along the dis- tance is also given,with the parameters at specific values.Experimental results show that the theoretical analysis is valid.