These polarizing cube beamsplitters are intended for use with lasers operating at a single wavelength. They are coated to achieve a high extinction ratio between the s and p components. They are manufactured from BK7 prisms which are cemented together and provides an extinction ratio of 1000: 1.
| Material: | BK7A |
| Surface Flatness: | < λ / 4 @ 633 nm |
| Surface Quality: | <20/10 |
| Beam Deviation: | < 3 arc min |
| Dimension Tolerance: | < ± 0.25 mm |
| Extinction Ratio: | Tp / Ts > 1000: 1 |
| AR Coating: | < 0.25% per face |
| Transmission of p-polarization: | > 95% |
| Reflectance of s-polarization: | > 99.8% |
| Absorption: | Negligible |
| Damage Thresholds: | >0.5 J / cm², 10 ns |
| Clear Aperture: | > 85% of diameter |
| Temperature Range: | – 50° C to 80° C |
Laser Line Polarizing Cube Beamsplitters (PB)
| Dimension | 5mm cube, 10mm cube, 15mm cube, 20mm cube, 30mm cube, 0.5" cube, 1.0" cube, 1.5" cube, 2.0" cube |
|---|---|
| Material | BK7 Grade A |
| Wavelength1 | 442 nm, 488 nm, 515 nm, 527 nm, 532 nm, 633 nm, 650 nm, 670 nm, 694 nm, 780 nm, 830 nm, 1053 nm, 1064 nm, 1310 nm, 1319 nm, 1550 nm |
High Power Laser Polarizing Cube Beamsplitters (HPB) 
