An optical splitter is a passive fiber-optic device that divides one optical signal into multiple output signals, allowing a single fiber connection to serve multiple destinations.
Optical splitters are commonly used in PON networks such as GPON and EPON. A splitter can divide the signal in ratios such as 1:8, 1:16, 1:32 or 1:64, depending on the network design and required number of connections.