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Wollaston Polarizers

Material

Quartz, YVO4, Calcite

Wavelength range

200 – 4000 nm

Clear aperture

Ø8 – 20 mm

Extinction ratio

<5×10-6*

Surface quality, S-D

20-10

Transmitted wavefront distortion, P-V

<λ/4 @ 632.8 nm

Beam deviation

<3 arcmin

Separation angle

2-20°

Coatings

Single layer MgF2

*depending on material

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Wollaston polarizers consist of two orthogonal prisms of birefringent material cemented together in such a way that their optical axes are perpendicular to each other.

A Wollaston polarizer is designed to separate an unpolarized light beam into two orthogonally polarized beams. Ordinary and extraordinary components are symmetrically deflected from the axis of initial propagation. This kind of performance is attractive for laboratory experiments because both ordinary and extraordinary beams are accessible. Apart from their most common use in spectrometers, these polarizers can be used as polarization analysers or beamsplitters in optical set-ups.

A custom separation angle can be designed upon your request.

 

Features

  • Wide wavelength range
  • Low power application
  • High extinction ratio
Typical Items for Wollaston Polarizers
Wavelength, nm Angular field, ° C.A.*, mm O.D.**, mm Product ID
QUARTZ WOLLASTON POLARIZERS
200-2300 2.0 @ 1064 nm 8 25.4 2-WP-2023-1
200-2300 2.0 @ 1064 nm 10 25.4 2-WP-2023-2
200-2300 2.0 @ 1064 nm 15 30 2-WP-2023-4
200-2300 2.0 @ 1064 nm 20 38 2-WP-2023-5
CALCITE WOLLASTON POLARIZERS
350-2300 19.0 @ 980 nm 8 25.4 2-WP-3530-1
350-2300 19.0 @ 980 nm 10 25.4 2-WP-3530-2
350-2300 19.0 @ 980 nm 15 30 2-WP-3530-4
350-2300 20 38 2-WP-3530-5
19.0 @ 980 nm
YVO4 WOLLASTON POLARIZERS
500-4000 20.0 @ 1550 nm 8 25.4 2-WP-5040-1
500-4000 20.0 @ 1550 nm 10 25.4 2-WP-5040-2
500-4000 20.0 @ 1550 nm 15 30 2-WP-5040-4
500-4000 20.0 @ 1550 nm 20 38 2-WP-5040-5

* Clear Aperture
** Outside Diameter

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