The wedge angle and back AR coating of the wedge plate beamsplitter reduces the interference of ghost imaging from the back reflection. The high precision substrate will make sure the reflection and the transmission wavefront error. Tuniu Optics provide various kinds of wedge plate Beamsplitter with multiple R/T ratios.
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 | UV Fused Silica | Surface Accuracy | λ/ 10@633 nm |
| Wedge Angle | 30 ± 10 arcmin | Surface Quality | 40/20-60/40 |
| Clear Aperture | 90% | Dimensions Tolerance | + 0/ -0.25 mm |
| Thickness Tolerance of Thick Edge | ± 0.25 mm | Bevel | Protective Bevel 0.2~0.5 mm x 45° |
| Angle of Incidence (AOI) | 45° Design | Coating | S1 BS Coating: R/T ± 10% (AVG of Designed Bandwidth) S2 AR Coating: Ravg＜1% (AVG of Designed Bandwidth) |
Model
| Size, mm | Wavelength, nm | R/T, S1 Coating | S2 Coating |
| Φ12.5, Φ25, Φ50, 12.5 x 12.5, 25 x 25, 50 x 50 | 250~400, 400~700, 700~1100 | (30%R/70%T) ± 10%, (50%R/50%T) ± 10%, (70%R/30%T) ± 10% | Ravg < 1%@700-1100 nm, Ravg < 1%@400-700 nm, Ravg < 1%@250-400 nm |