Fiber optic splitter, also referred to as optical splitter, fiber splitter or beam splitter, is an integrated waveguide optical power distribution device that can split an incident light beam into two or more light beams, and vice versa, containing multiple input and output ends. Conversely, it can also combine multiple signals into one. Its primary role is in Passive Optical Networks (PON), which are the foundation of. A “splitter” is a power splitter. Optical splitters are a very important component in fiber optic links, widely used in.