Cube beamsplitters are constructed by cementing two precision right angle prisms together with the appropriate interference coating on the hypotenuse surface. The absorption loss to the coating is minimal. Transmission and reflection approach 50% (average), though the output is partially polarized.
Commercial Grade Cube Beamsplitters offer commercial quality, at an affordable price. Commercial grade optics have standard designs and are available on an ongoing basis. They are recommended for volume buyers or OEMs.