相比透射型组合滤波器件,提出了只需要由一种反射元件构成的反射型组合滤波器件的光路。在保证角谱选择性的前提下,降低了设计和制备的难度。另外,通过膜系设计和电场强度比较,发现此反射型组合器件具有比透射型组合器件更高的抗激光损伤阈值(LIDT)。因此,为反射型介质膜组合滤波器件的制备和应用奠下了基础,具有重要的指导意义。 Compared with the transmissive combined filter, the optical path of the reflective combined filter required only by one kind of reflective element is proposed. Under the premise of ensuring the selectivity of spectrum, the difficulty of design and preparation is reduced. In addition, the reflection-type combination device was found to have a higher laser damage damage threshold (LIDT) than that of the transmission-type combination device by comparison with the design of the film system and the electric field intensity. Therefore, it has laid the foundation for the preparation and application of the dielectric filter combined filter device, which has the important guiding significance.