High Power Cubes
Especially suited for high laser powers as, due to the optical contacting, no glue is required between the hypotenuses which would otherwise reduce the damage threshold significantly. These cubes separate the S and P polarization components by reflecting the S component at the beamsplitter coating, while allowing the P component to pass with an extinction ratio of Tp:Ts > 1000:1.
| Contacted: | optically |
| Shape: | cube (diversion reflected beam: 90 deg. +/-3 min of arc) |
| Material: | PBC 370-420, 532, 1064, 532&1064 = Fused Silica |
| PBC 420-490 = F2 | |
| Reflection (S-Polarized): | > 99.8% |
| Surface Quality: | S/D 20-10 |
| Surface Flatness: | λ/10 (633 nm) |
| Wavefront Distortion: | λ/4 (633 nm) |
| Extinction Ratio: | PBC 370-420 = 1000:1 for an acceptance angle +/- 1.5 deg |
| PBC 420-490, 532, 1064, 532&1064 = 1000:1 for an acceptance angle +/- 2 deg | |
| PBC 720-880 = 500:1 for an acceptance angle +/-2 deg | |
| Clear Aperture: | 90% |
| Antireflection Coating: | R < 0.25% per surface |
| LIDT: | PBC 370-420: 6 W/mm CW, 1 J/cm² 10ns |
| PBC 420-490: 10 W/mm CW, 1 J/cm² 10ns | |
| PBC 532: 100 W/mm CW, 5 J/cm² 10ns | |
| PBC 1064: 200 W/mm CW, 7 J/cm² 10 | |
| PBC 532&1064: 75 W/mm CW, 4J/cm² 10ns | |
| PBC 720-880: 100 W/mm CW, 5 J/cm² 10ns |
Other cube dimensions and wavelengths on request
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