Wollaston Crystal Polarizing Prisms

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Product Description
  • Extinction Ratio up to 100,000:1 (Upon the incidence of unpolarized light, two orthogonally polarized beams can be obtained at the output with an extinction ratio of up to 100000:1.)
  • Optimized Assembly Design (Calcite prisms are cemented with an optical adhesive, while α-BBO prisms are joined via optical contact.)
  • Integrated Mechanical Housing (Pre-installed in a non-removable, black-anodized mechanical housing. One end features an SM1 external thread with a locking ring for counter-locking and polarization control, while the opposite end is smooth. Both ends are compatible with LBTEK's mounts.)
LETEK's Wollaston Crystal Polarizing Prisms are designed to output linearly polarized light with high extinction ratios. To accommodate different wavelength ranges, LBTEK offers Wollaston prisms made from two identical uniaxial birefringent crystals (calcite or α-BBO), with their optical axes oriented perpendicular to each other (no > ne for both materials). Calcite provides excellent transmittance from the visible to the near-infrared, while α-BBO excels from the ultraviolet to the mid-infrared. The prisms are assembled using cementing or optical contact. Upon the incidence of natural light, both the o-ray and e-ray are deflected at the output. These two beams possess mutually perpendicular polarization directions and equal deviation angles, and the separation angle is determined by the operating wavelength, material properties, and prism wedge angle. LBTEK also provides customization services for various sizes and design wavelengths. For specific requirements, please contact LBTEK Technical Support and refer to the technical manual for operational precautions.
Diagram
Attributes
MaterialLaser-Grade Natural Calcite / Laser-Grade α-BBO
Structural DesignCemented / Optical Contact
Clear ApertureØ 10.0 mm
Beam deflection< 10 arcsec
< λ/8 @ 633 nm
Surface Quality (Scratch/Dig)20/10 (Input/Output Facets)
Housing DiameterØ25.4 mm +0.0/-0.2 mm
Wollaston Crystal Polarizing Prisms
  • Material: Calcite/α-BBO
  • Clear Aperture: Ø10 mm
  • Operating Wavelength: 200 nm-2.3 μm (Sub-ranges available)

LBTEK's Wollaston Crystal Polarizing Prisms are designed to output linearly polarized light with a high extinction ratio. LBTEK offers Wollaston prisms with a clear aperture of Ø10 mm, covering operating wavelengths of 200 nm-1.1 μm (with UV protective coating) and 350 nm-2.3 μm (uncoated).

Wollaston Prism Mounted in a Rotation Mount

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Clear Aperture
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WSP10-UV Ø10 mm100000:1200 nm-1.1 μm$889.43today
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WSP10 Ø10 mm10000:1350 nm-2.3 μm$580.75today
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