The Manufacture Of High-power Laser Split-color Filters With High Reflectance In Visible And Middle-infrared Waveband With High Transmittance In 10.6μm CO₂ High-power Laser Wavelength

This paper mainly discusses the key parts of an apparatus that the flexible CO₂ laser weapon realizing the aim of following and taking aim, and shooting with one aperture of optional system------high-power laser split-color filters with high reflectance in visible and middle-infrared waveband with high transmittance in 10.6μm CO₂ high-power laser wavelength. Through the analysis of optical system and split-color filters'practical performance and target with considering the difficulty of depositing of split-color filters, we make sure the feasible project that high reflectance in visible and middle-infrared waveband with high transmittacne in 10.6μm CO2 laser wavelength. It is finally confirmed that the substrate ,high refractive index medium material, low refractive index medium material using CVD-ZnSe crystal ,ZnSe,YbF3,based on ensuring the project of the split-color filters we analyze and compare the optical and physical character ,the laser-induced damage threshold of all available optical coating material. The best spectrum performance of the split-color filter is achieved by the way of the optimization of the thickness of several outermost film layers. Furthermore, it is introduced the split-color filter's the depositing technology, the measure of spectrum and laser-induced damage threshold. The spectrum and laser-induced damage threshold of the split-color filter satisfy basically the expected target demand. The satisfied fruit is obtained. It is based firmly on the sake of the manufacture of correlated film elements.