The wedge angle and back AR coating of the wedge plate beamsplitter will reduce the interference of ghost image from the back reflection. The high precision substrate will make sure the reflection and the transmission wavefront error. Tuniu Optics provide various kinds of IR wedge plate Beamsplitter for your application.
Note: This series is intended for unpolarized light splitting only. For intensity splitting of polarized light (partially polarized, linearly polarized, circularly polarized, elliptically polarized), use depolarizing beam-splitting prisms.
| Material | Calcium Fluoride(CaF2) Single Crystal | Surface Accuracy | λ/4@633 nm |
| Wedge Angle | 30 ± 10 arcmin | Surface Quality | 60/40 |
| Clear Aperture | 90% | Diameter Tolerance | + 0/ -0.25 mm |
| Thickness Tolerance of Thick Edge | ± 0.25 mm | Bevel | Protective Bevel 0.2~0.5 mm x 45° |
| S1 Beam Splitting Coating | 45° AOI [(R/T) ± 10%]avg@2~8 μm | S2 AR Coating | Uncoated |
Model
| Size, mm | Thickness, mm | R/T | Coating |
| Φ12.7 Φ25.4 Φ50.8 | 3 5 8 | 50R/50T | S1: BS coating@2~8 μm, S2: Uncoated |