Polarzing Beam Displacers
Materials: alpha-BBO, Calcite or YVO4 single crystal.
Two orthogonally polarized outputs, o-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) coatings are available upon request.
Standard apertures: 8x8 mm, 10x10 mm, 12x12 mm.
Displacement range: 0.001 -- 4.0mm.
Application Example:
Large a-BBO displacers for Strong Loophole-free Test of Local Realism
| 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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