With perfect surface
polishing, the window have extremly smooth surface to
fit fot the high laser power application.
It also can be used as laser mirror substrate, laser coupler
Material: BK7 or Fused silica
Diameter Tolerance: +0.0, -0.1mm
Thickness Tolerance: +/- 0.2mm
Clear Aperture: >85%
Surface Quality: Better than 10-5
Flatness: Better than l/10
Parallelism: up to 5"
High damage threshold AR coating
e.g. Damage threshold >2GW/cm^2 (pulse laser) or >5KW/cm^2
(CW laser) for AR coating at 1064nm.