Beamsplitters are optical components used to split incident light at a designated ratio into two separate beams. a laser beam) into two (or sometimes more) beams, which may or may not have the same optical power (radiant flux). Different types of beam splitters exist, as described in the. If I use a beam splitter in order to combine two light beams, are there any requirements as to the polarization of the two light beams? If both lights beams are randomly polarized, will the beam splitter still be able to combine them? If you have two unpolarized beams, you can combine them with a. A beamsplitter is an optical device capable of splitting an incident light beam into two. These tools can split both laser and regular light.