A polarizing light beam splitter is created in the form of two Dove prisms of BK7 glass with a multilayer thin-fi lm coating made of two periodic substructures between them. The number of layers of Nb₂O₅ and SiO₂ in each structure and their thicknesses are chosen to ensure that they reflect s-polarized and transmit p-polarized components of the incident light over the entire specified working spectral range of the splitter. This is achieved by partial overlap and supplementation by one another of photon band-gap structures of the corresponding structures at the Brewster angle. For a full divergence angle of the input light beam of up to 10o, the manufactured polarizing splitter provides a degree of polarization of 0.99 over the working wavelength range of 400–800 nm. Since the material for making the polarizing splitter is optical glass, the size of the splitters of this design is limited only by the working volume of the vacuum chambers used to deposit the optical coatings.

偏振光分束器以两个 Dove 棱镜 BK7 玻璃的形式创建，多层薄膜涂层由它们之间的两个周期性子结构制成。Nb ₂ O ₅和SiO ₂的层数在每个结构中，选择它们的厚度以确保它们在分光器的整个指定工作光谱范围内反射入射光的 s 偏振分量和透射 p 偏振分量。这是通过在布儒斯特角的相应结构的光子带隙结构彼此部分重叠和补充来实现的。对于高达 10o 的输入光束的全发散角，制造的偏振分光器在 400-800 nm 的工作波长范围内提供 0.99 的偏振度。由于制造偏振分光器的材料是光学玻璃，因此这种设计的分光器的尺寸仅受用于沉积光学涂层的真空室的工作容积的限制。