issue date：2016-3-31 15:35:44 visit frequency：3117
The beamsplitter plate is a thin optical glass plate. The first face is coated with an all-dielectric thin film having partial reflection properties. The second surface is multilayer AR coated for 45 degree or some other specified incident angle. This beamsplitter may also be designed for low absporption and high damage threshold, suitable for high energy laser applications.
We provide various plates, distinguished by the polarization of the incoming and outgoing beams. Unpolarized beamsplitter plates, generate partially polarized outgoing beams for randomly polarized incoming light. Polarized plates generate both s-polarized and p-polarized beams from randomly polarized incoming light. For non-polarizing BS plates, the polarization of the outgoing beams remains the same when the incoming beam is 45 degree linearly polarized or circularly polarized.
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Specification |
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Material |
N-BK7 grade A optical glass |
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Dimension Tolerance |
±0.2mm |
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Thickness Tolerance |
±0.2mm |
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Flatness |
λ/8 @ 632.8 nm |
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Surface Quality |
40/20 scratch and dig |
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Parallelism |
<1 arc minute |
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T/R |
50/50±5%, for random polarization T=(Ts+Tp)/2, R=(Rs+Rp)/2 |
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Coatings |
(Incidence angle: 45 degree S1: partial reflection coating S2: Anti Reflection coating |
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Standard Coating Wavelength |
Narrow Band: 488, 532, 632.8, 650, 808, 850, 980, 1064, 1310, 1550 nm Broadband: 450-650, 650-900, 900-1200, 1200-1550, 1500-1610 nm |
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Size(mm) |
Narrow Band |
Broadband |
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Part No. |
Part No. |
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10x10x2 |
BP303 |
BP403 |
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12.7x12.7x2 |
BP304 |
BP404 |
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25.4x25.4x2 |
BP305 |
BP405 |
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ф25.4x2 |
BP306 |
BP406 |
