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Polarzing Beam Displacers

Polarzing Beam Displacers
Polarzing Beam Displacers

Materials: alpha-BBOCalcite or YVO4 single crystal. 
Two orthogonally polarized outputso-ray transmits directly, 
   e-ray transmits with a displacement.

 High extinction ratio (> 100,000:1) over specified range of wavelength.
a-BBO dispacers are protective coated, calcite/YVO4 are uncoated.
  Anti-reflective (AR) coating are available upon request.

Standard apertures: 8x8 mm, 10x10 mm, 12x12 mm

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Part No. Description Material Displacement Price Availability Add to Cart


Specifications of polarizing beam displacers:
 

Dimensions Tolerance:    +/- 0.2 mm
Wavefront Distortion:     < λ/4 @632.8 nm

Scratch/Dig:                 40/20
Beam Deviation:            < 0.5 arc minutes

Extinction Ratio:            > 100,000:1


Coatings:


Unless the coating is specified, PDB (a-BBO) is coated with single-layer MgF2 protective coating (P-coating) to prevent moisture from the polished faces,  PDC (calcite) and PDY (YVO4) are uncoated.

Input and output faces can be AR coated with R<0.25% at the specified central wavelength.
For the inquiry, please specify the coating and append to the part number, e.g. PDC1040-AR800 for the calcite beam displacer with the AR coating @ 800 nm.

Common AR coatings:

α-BBO: 355, 400, 532, 775, 800, 1030, 1064, 1550 nm, and dual AR@800/400n m, 1030/515 nm,  1064/532 nm, 1550/755 nm

Calcite: 775, 800, 820, 1064, and 1550 nm

YVO4: 1064 and 1550 nm

 

Mounts:
 

The displacers are mounted in an OD 1" anodized aluminum (Al) mount.  Unmounted displacers or custom mounts are available upon request. 

 

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