Clear Aperture

28mm, 50mm, 70mm, 85mm, 100mm,116mm, 150mm

Surface Quality (at 632.8nm)

lambda/50 to lambda/200

Wedge Angle

Zero +/- 1fringe or 10-15 arc min (nom)

Mirror Spacing

Specified by customer in the range 3microns to >100mm

Cavity Tuning Range

3 microns (nom) for CQ, FS & WF etalons 7.5 microns (nom) for ZS etalons

Material Designations

FS-Fused Silica, WF-Waterfree Silica, ZS-Zinc Selenide, CQ-Crystal Quartz

Coatings

Optimised High Reflector multi-layer dielectric coatings and Anti-Reflection coatings matched to the application requirements in reflectivity and wavelength coverage are provided.