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Beamsplitter Cube
Beamsplitter Cube are constructed by cementing two precision right angle prism together with appropriate interference coating on the hypotenuse surface. The absorption loss to the coating is minimal transmission and reflection approach 50% (average) though output is partially polarized.
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Attribute
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Specification
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Material
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N-BK7 or H-K9L grade A optical glass
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Wavelength(Narrowband)
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532, 633, 650,808,850, 980, 1064, 1310, 1550nm
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Wavelength(Broadband)
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450-650nm, 650-850nm, 900-1200nm, 1250-1550nm, 1500-1610nm
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Standard Size(mm)
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2x2x2,5x5x5,
10x10x10,12.7x12.7x12.7, 20x20x20,25.4x25.4x25.4 |
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Dimension Tolerance(mm)
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±0.2
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Flatness(per 25mm@632.8nm)
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λ/4
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Surface Quality
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60/40
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T/R
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50/50±5%, for random polarization ,T=(Ts+Tp)/2, R=(Rs+Rp)/2
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Beam Deviation
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<3 arc minutes
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Coating
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Hypotenuse Face : Partial Reflection Coating
All Input and Output Faces: AR Coating
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