| Transmitting wavefront distortion |
less thanl/8 @ 633 nm |
| Dimension tolerance |
(W± 0.1 mm) x (H± 0.1 mm) x (L + 0.2 mm/-0.1 mm) |
| Clear aperture |
central 80% diameter |
| No visible scattering paths or centers when inspected by a 30 mW green laser |
| Flatness |
l/8 @ 633 nm |
| Surface Quality |
10/5 Scratch/Dig to MIL-O-13830A |
| Parallelism |
better than 20 arc seconds |
| Perpendicularity |
15 arc minutes |
| Angle tolerance |
Dq < ±0.5o,Df <± 0.5o |
| Damage threshokd: |
| 15 GW/cm2 for a TEMoo mode, 1.3 ns, 1 Hz laser at 1.064 mm |
| 1 GW/cm2 for a cw, mode-locked laser at 1064 nm |
| Quality warranty period |
one year under proper use |
