These dielectric coated plate beamsplitters are intended for use with broadband or multi-spectral sources. They have a flat performance with a controlled equal split ratio. The s and p components are separated by up to 30% and in combination they provide an average transmittance and reflectance close to 50%. Absorption and reflection losses are minimal.
| Material: | UV Fused Silica BK7A |
| Surface Quality: | <10/5 |
| T and Rave: | 50% ± 5% |
| Difference of s-pol and p-pol: | < 30% |
| BBAR Coating: | R < 0.5% |
| Dimension Tolerance: | < + 0.00 / -0.20 mm |
| Clear Aperture: | > 85% of diameter |
| Damage Threshold: | > 3 J / cm2 (10 ns) |
| Absorption: | Negligible |
| Durability: | Meet adhesion & abrasion per MIL-C-675 |
Broadband 50:50 Plate Beamsplitters (BDPB)
| Dimension | 1.0" dia x 1.5mm t, 1.0" dia x 0.25" t, 2.0" dia x 0.375" t, 3.0" dia x 0.5" t, 2.0" x 2.0" x 2mm t |
|---|---|
| Material | BK7 Grade A, UV Grade Fused Silic |
| Reflectivity | 50R % |
| Wavelength | 550 nm, 800 nm, 1100 nm, 1400 nm |
Broadband Neutral Plate Beamsplitters (BNEB) 
