LASER COMPONENTS has developed a thin-film polarizer that simultaneously separates the polarizations of three wavelengths. Designed for an angle of incidence of 45°, the optics show high quality reflection properties for s-polarization in blue (450 nm), green (520 nm), and red (640 nm) light, while p-polarization is transmitted.
In optical systems, polarizers can be used to combine linearly polarized laser beams from several sources, even if they have the same or different wavelengths. Conversely, these types of optics make it possible to separate unpolarized light at three wavelengths into two polarizations simultaneously.
While the manufacture of thin-film polarizers is no longer an art, trichroid polarizers present a major challenge. The complex layer design is produced in our ion beam sputtering (IBS) facility, enabling compact layer structures, providing excellent reflection properties.
