Influence of dynamic impact on optical properties of optical transmission window of laser measurement system

摘要

The light transmission window is an important part of the optical system, and the high overload environment seriously affects the working quality of the laser receiving system. In this paper, the combination of dynamics and optical numerical simulation is used to analyze the optical characteristics of the light-transmissive window after undergoing high overload. Using the dynamic finite element analysis method, a simulated high overload shock was applied to the light transmission window to study the deformation of the light transmission window. The light transmission windows before and after the impact were optically simulated under the same conditions, and the optical characteristics of the light transmission window before and after high overload were compared and analyzed. The results show that with the increase of the impact acceleration, the brightness of the center of the exit spot after the collimation system is collimated and transmitted through the light transmission window is reduced, the spot size is increased, and the energy is diverged.