CUSTOMIZED
Substrates material: IRFS (Corning 7978 0F)
Diameter: 25.4 mm +0/-0.1 mm
Thickness: 2.0 mm +/-0.1 mm
Clear aperture: min 20 mm
Surface quality, S1/S2: 20-10 S-D per CA (MIL-PRF-13830B)
Transmitted WFD: <λ/8@633 nm per CA
Parallelism: < 20 arcsec
Protective chamfers: 0.2 - 0.4 mm x 45°
Coatings (IBS):
S1: AR_abs<0.3% @ 900 nm - 1160 nm, AOI=0 deg
S2: AR_abs<0.3% @ 900 nm - 1160 nm, AOI=0 deg
GDD (S1+S2+IRFS substrate) <90 fs^2
LIDT: high power applications
