CO₂ + Pointing Laser Beam Combiners

These beam combiners are intended for super-imposing visible alignment lasers with CO₂ laser beams.   The CO₂ laser beam is transmitted while the red alignment laser beam is reflected at a 45° angle.

A dichroic coating is applied to the reflecting face and an anti-reflection coating for 10.6μm is applied to the rear surface.  Three different substrates are offered, Zinc Selenide, Gallium Arsenide or Germanium. 

Standard diameters are 12.7, 15.2, 19.1, 25.4, 27.9, 38.1, 44.4 and 50.8 mm.   Thickness varies from 2 to 5 mm in order to control the flatness specification. 

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