Beamsplitters (or BS) separate an incident beam of light into its two normal components. These devices come in many forms: plates, cubes, pentagons, hexagons. Based on the desired optical characteristics, these devices can come with dielectric or metal coatings.
Non-polarizing, Broadband, Normal Incidence, 45 Degree Visible, Wide Band neutral, Broadband Hybrid cubes.
While “cemented” BS are a commodity, we can supply high damage threshold, optically contacted/fused polarized cubes. Typically used in high power applications, these PBS cubes are thermally stable and the strong optical bond allows processing even after assembly; meaning, they can be cut, polished and coated. Our PBS cubes are made from of BK7 and FS.
Material |
BK7, Optical Glass |
Dimensional Tolerance |
±0.1mm |
Surface Accuracy |
1/8 wave |
Surface Quality |
40/20 |
Angle Tolerance |
±2 arc min |
Clear Aperture |
>90% |
Design wavelengths |
Visible (400 – 700nm), IR (700 – 1100nm), FIR (1100 – 1600nm) |
Coatings |
Ravg <0.5% (@600-1050nm) |
High Damage Threshold Optically contacted PBS cubes
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Optical Properties |
Damage Threshold > 15 J/cm2 (@ 1064 nm), Flatness λ/8, SD 20/10, Transmission > 96%, Extinction Ratio > 1000:1 |
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