The C-BS is a fixed alignment beamsplitter unit that holds a 25.4mm (1”) diameter x 3.0mm thick optical
component at 45° angle of incidence. The coating reflectance and polarisation type can be chosen to suit.
The clear aperture of the beamsplitter is 16.4mm and the transmitted beam aperture is off-set by 1.5mm to
the input to allow for the lateral displacement of the beam as it passes through a 3mm thick ZnSe optic.