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Plate beamsplliters are available with nominal split ratios of 30/70, 50/50, and 70/30. These ratios assume that the incoming beam is randomly or circularly polarized with equal parts of s and p polarization.
If the beam is randomly polarized, the split beams will be linearly polarized (weakly). If the incoming beam is circularly polarized, the split beams will be elliptically polarized.
 Standard Specifications:
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Optical Material:
Diameter Tolerance:
Surface Quality:
Surface Flatness:
Beam Deviation:
Nominal T/R Ratio:
Clear Aperture:
Bevel:
Coating:
 1st Surface:
2nd Surface:
Available Wavelength: |
BK7 grade A optical glass
±0.2mm
60-40 scratch and dig
lambda/4 at 632.8nm
<10 arc minutes
50/50 ±5% for average polarization
>85%
<0.25mm X 45°
All-dielectric partial reflection coating for 45°,
surface marked with a dot.
Antireflection coated for <1.0% reflectance
for 45°
Visible and Near Infrared. |
Standard Broadband Plate Beamsplitters
Dimension(mm) |
Product Number |
450-650nm |
650-900nm |
900-1200nm |
1200-1550nm |
D10.0 |
UQT-VPB0101 |
UQT-VPB0201 |
UQT-VPB0301 |
UQT-VPB0401 |
D12.7 |
UQT-VPB0102 |
UQT-VPB0202 |
UQT-VPB0302 |
UQT-VPB0402 |
D15.0 |
UQT-VPB0103 |
UQT-VPB0203 |
UQT-VPB0303 |
UQT-VPB0403 |
D20.0 |
UQT-VPB0104 |
UQT-VPB0204 |
UQT-VPB0304 |
UQT-VPB0404 |
D25.4 |
UQT-VPB0105 |
UQT-VPB0205 |
UQT-VPB0305 |
UQT-VPB0405 |
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| Please Contact ultiQuest for other dimensions in prototype and production quantities. |
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| NOTES! |
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The transmittance curve is a graph based on actual measurements and may vary from production lot to production lot. |
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The surface flatness is the reflected wavefront distortion of the surface before coating. |
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Plate-type nonpolarizing beam splitters are also provided upon request. |
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Be sure to wear laser safety goggles when checking optical path and adjusting optical axis. |
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