Lasertec manufactures thin-film plate polarizers, which are based on interference within a dielectric optical thin-film coating on a thin glass substrate. These polarizers function as beamsplitters, diverting the unwanted polarization 90°.  Thin-film plate polarizers have a number of unique advantages, including superior transmission, low scattering and very little wavefront distortion.  They can be made with excellent environmental reliability, the highest laser damage threshold and very large aperture sizes.  Thin-film plate polarizers function over a specific wavelength range because they are based on multiwave interference and are best suited to laser applications or systems with a limited signal band.

Our polarizers can be Applied in place of laser line cube polarizers in fiber laser systems as well as with high energy Nd:YAG lasers. They can also be used in combination with a waveplate to create high damage threshold variable attenuators and passive optical isolators, or individually as intracavity Q-switch hold-off polarizers.

LASERTEC use our super polished substrates and IBS coating to supply a series of high extinction ratio, thin film polarizers.The wavelength range from UV to NIR. With our precision polishing technology and Ion Beam Sputtering  deposition technology,The customized Polarizer upto 5000:1 with Tp>98%@CW with 120*60mm aperture. Our standard specification with following table.

Lasertec’s Specification of  Thin Film Polarizer

Our standard TFP with following Part No.