Yutai beam splitter (or beamsplitter, power splitter) is an optical device which can split an incident light beam (e.g. a laser beam) into two or more beams, which may or may not have the same optical power. Yutai Optics can make different types of beam splitters exist, as described in the following; the most important ones are plate and cube beam splitters. They are used for very different purposes. For example, beam splitters are required for interferometers, autocorrelators, cameras, projectors and lasersystems.