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High Contrast Brewster Type Thin Film Polarizers

High Contrast Brewster Type Thin Film Polarizers

Wavelength range

190 – 3000 nm

Dimensions

5 – 200 mm

Shape

Round, rectangular

Surface quality, S-D

20-10

Transmitted wavefront distortion, P-V

<λ/10 @ 632.8 nm*

Extinction ratio Tp/Ts

1000:1

LIDT

High LIDT values possible

*depending on size

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Using lasers in industrial applications creates new challenges in making devices smaller and cheaper, while also robust and repeatable.

Polarization optics are important for both intra and extra-cavity use. By having high-contrast thin film polarizer in their design, laser engineers can save on weight and volume in their devices without influencing the output. Because of their high damage threshold and extinction ratio, thin film polarizers are a good replacement for Glan laser polarizing prisms or polarizing cube beamsplitters.

The design of thin film polarizers for high LIDT and high polarization ratios are exclusively based on IBS technology, in which a dense coating is required. Each coating batch is tested to confirm all spectral characteristics. Typical Laser damage threshold reports can be found on our website: www.altechna.com/lidt.

 

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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