Polarization beam splitter (PBS) can split incident unpolarized light into two perpendicular linearly polarized beams. Among them, P polarization completely passes through, while S polarization is reflected at a 45 degree angle, and the exit direction is at a 90 degree angle to P light. This polarizing prism is made up of a pair of high-precision right angle prisms glued together, with one prism’s oblique edge coated with a polarizing dielectric film.
