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Dualband Brewster Type Thin Film Polarizers

Three dualband brewster type thin film polarizers in transparent green color

Dualband Brewster Type Thin Film Polarizers

Wavelength range

190 – 3000 nm


5 – 200 mm


Round, rectangular

Surface quality, S-D


Transmitted wavefront distortion, P-V

<λ/10 @ 632.8 nm*

Extinction ratio Tp/Ts



Check LIDT tab

*depending on size

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Dualband Brewster type thin film polarizers

Polarization optics are important for both intra and extra-cavity use. Some advanced applications require precision-beam combinations for which the polarization state is extremely important. Dualband Brewster Thin Film polarizers are designed for use with two collinear beams of different wavelengths while maintaining the performance of a regular Brewster polarizer.

We design thin film polarizers in-house for both high LIDT and high polarization ratios. Each coating batch is tested to confirm all spectral characteristics. Typical Laser damage threshold reports can be found on our website:

Contact us so we can help you with your challenge. We have an experienced team of coating engineers and metrology capabilities to prototype and transfer your idea into a well-defined production process.


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