High Extinction Broadband Polarizing Cube Beamsplitter (BPB)

- Broadband visible use
- Low power applications
These polarizing cube beamsplitters provide a high degree of polarization over a broad visible spectral range. They are made by cementing the prisms together making them unsuitable for high power use. They use SF2 prisms and provide a high extinction ratio of at least 500:1.
Material: |
SF2 |
Surface Flatness: |
< λ / 8 @ 633 nm |
Surface Quality: |
<20/10 |
Beam Deviation: |
< 3 arc min |
Dimension Tolerance: |
< + 0.00 / – 0.20 mm |
Extinction Ratio: |
Tp / Ts > 500: 1 |
AR Coating: |
< 0.5% per face |
Transmission of p-polarization: |
Tave > 90% |
Reflectance of s-polarization: |
Rave > 99.8% |
Absorption: |
Negligible |
Damage Thresholds: |
> 0.5 J/cm2 (10 ns) |
Clear Aperture: |
> 85% of central circular dimension |
Temperature Range: |
– 50° C to 80° C |
High Extinction Broadband Polarizing Cube Beamsplitter (BPB)