Side surface : Roughness (Ra) > 1μm
or nearest standard
Scattering loss@1064nm
<0.3% cm-1 over entire length
End surface finish
Surface Flatness λ/10 @ 632.8 nm or better
Surface quality(Scratch & Dig) 10-5
Chamfer 0.15 + 0.05 mm @45o or nearest std
Parallelism 10 arc seconds or better
Perpendicularity 5 arc minutes
End surface coating
AR Coating @ 1064 nm on both ends
AR coating quality
MIL-C-675C adhesion, abrasion and humidity resistance
AR Coating reflectivity
< 0.1 % per surface @ 1064 nm for normal incidence
AR Coating damage threshold
> 1 GW/cm2 for 10 ns pulses @1064 nm
Shelf life of the AR Coating > 10 Years