Plate Polarizers for Lasers

Polarization optics is important for both intra and extra cavity use. By using high contrast thin film polarizers in their design, laser engineers can save weight and volume within the laser system without influencing the output. Compared with polarizing prisms, polarizers have larger incident angle and can be made with larger apertures. Compared with polarizers made from birefringent crystals, the advantage of thin film polarizers made from UVFS or N-BK7 is that they can be fabricated in very large sizes, therefore are particularly well suited for high laser powers and UV wavelengths. Broadband plate polarizers with low dispersions are mainly used in systems that cover a wide wavelength range, e.g., in Ti:sapphire femtosecond lasers.

Wisoptic' superior high-energy polarizer performance is achieved through advanced coating design and meticulous production procedures. Due to their high damage threshold, thin film polarizers replace Glan laser polarizing prisms or cube polarizing beamsplitter in applications with high energy Nd:YAG applications and in ultrafast lasers. We develope polarizing optics for use in some of the most demanding lasers in the world. 

WISOPTIC Specifications - Thin Film Polarizer