Material |
BK7 |
Surface quality |
40-20 scratch & dig (MIL-PRF-13830B) |
Clear aperture |
80% of the face size |
Flatness |
λ/4 @ 633 nm |
Beam deviation |
3 arcmin |
Dimensions tolerance |
±0.5 mm |
Splitting ratio |
R/T = 50/50 ± 5%, |
All dielectric coatings of non-polarizing laser beamsplitters are optimized to be insensitive to polarization at designed wavelengths. The coatings hold both the s- and p-polarization components to the same ratio of reflection-to-transmission over a specific laser wavelength region.
We suggest to choose from non-polarizing cube beamsplitters for broadband 450-700 nm and 750-1100 nm ranges.