LASER COMPONENTS has developed a new layer design that has the ability to separate the polarizations of three wavelengths simultaneously. Manufactured according to customer specifications, the optics can be used to combine linearly polarized laser beams from several sources. This can be achieved even if they have the same or different wavelengths. In addition, it is now possible to separate the unpolarized light of three wavelengths into polarizations, simultaneously.
The trichroid thin-film polarizer is designed for an angle of incidence at 45° and exhibits excellent reflection properties for red (640 nm), green (520 nm), and blue (450 nm) light for s-polarization, while p-polarization is almost completely transmitted.
This type of polaraization requires compact layers containing a low layer thickness tolerance. This process and properties are achieved with the latest technology in an ion beam sputtering (IBS) coating system. The coating material is removed from a target by an ion beam and atomized (sputtered), with the material particles containing a very high kinetic energy and very mobile when deposited on the substrate. This type of thin-film polarization enables the compact layers, and complex designs to be created and is superior to other processes.
