Non-Polarizing Cube Beamsplitter consists of a pair of precision high tolerance right angle prisms cemented together with a metallic-dielectric coating on the hypotenuse of one of the prisms. The low polarization dependence of the metallic-dielectric coating allows the transmission and reflection for Sand P-polarization states to be within 5% of each other. This means that they will not change the state of polarization of the incident beam. We offer both broadband and single wavelength non-polarizing cube beamsplitters (NPBS). An antireflective coating has beem applied to each face of the beamsplitter in order to produce maximum transmission efficiency for the appropriate wavelength range.
Dimension Tolerance
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±0.2mm
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Flatness
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λ/4@632.8nm
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Surface Quality
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60-40 scratch and dig
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Beam Deviation
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<3 arc minutes
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Transmittance
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45%±5%
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Absorption
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<10%
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Polarization
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<6%
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Hypotenuse Face
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Non-Polarizing Beamsplitter Coating
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All Input and Output Faces
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AR Coating
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