Substrate material: BK7
S1 Surface Figure: λ/10 @ 633nm
S1 Surface Quality: 10-5 laser quality
S2 Surface Quality: Commercial Finish
Diameter Tolerance: +0.0/-0.20 mm
Thickness Tolerance: ±0.25 mm
Wedge: ≤3 are min.
Clear Aperture: >85% of diameter
Chamfer: 0.3mm at 45 typical
Damage Threshold: 10j /cm2 , 10ns pulse
Adhesion and Durability: Per MIL-C-675A
