45° Polarizing Beamsplitter Plate
The 45° polarizing beam splitter is made of ultraviolet fused silica substrate. As a polarization optical component, it separates incident light into different polarized components (p-light and s-light), transmitting p-polarized light and reflecting s-polarized light. At a 45° angle of incidence, the extinction ratio of the transmission end (Tp/Ts) exceeds 200: 1. Any variation in the incident angle will reduce the extinction ratio.
- Split the S beam and P beam
- 45degree Angle of Incidence
- Suitable for High Power Application
Specifications
| Material | UV Fused Silica |
| Dimension Tolerance | + 0/ -0.2 mm |
| Thickness Tolerance | ± 0.2 mm |
| Surface Quality | 60/40 |
| Clear Aperture | > 90% |
| Flatness | < λ/8@632.8 nm |
| Parallelism | < 3 arc minutes |
| Extinction Ratio | Tp/Ts > 200:1 |
| Transmission | Tp > 95%, Ts < 0.5% |
| Reflection | Rs > 99.5%, Rp < 5% |
| Coating | AOI 45deg (Should be tuned to optimized AOI in use); One surface coated, rear surface uncoated. |
| Damage threshold | > 5 J/cm2, 20 ns, 20 Hz@1064 nm |
Model
| Wavelength, nm | Dia., mm | Thickness, mm | Tp/Ts |
| 355 | φ12.7 | 3 | >200:1 |
| φ25.4 | 6.35 | ||
| φ50.8 | 6.35 | ||
| 532 | φ12.7 | 3 | |
| φ25.4 | 6.35 | ||
| φ50.8 | 6.35 | ||
| 633 | φ12.7 | 3 | |
| φ25.4 | 6.35 | ||
| φ50.8 | 6.35 | ||
| 780 | φ12.7 | 3 | |
| φ25.4 | 6.35 | ||
| φ50.8 | 6.35 | ||
| 1064 | φ12.7 | 3 | |
| φ25.4 | 6.35 | ||
| φ50.8 | 6.35 |