Optical splitters are the core optical devices in Passive Optical Network (PON) systems, widely used in Fiber to the Home (FTTH) applications. There are two different distribution methods for them in FTTH networks: centralized distribution and cascaded distribution. What Is a Fiber Optic Splitter? A fiber optic splitter is a passive. A “splitter” is a power splitter. A splitter is not a filter like a wavelength division multiplexer (WDM). Light power goes in and light power coming out. Wavelength-Division Multiplexing (WDM) splitters are specialized splitters used to separate or combine optical signals based on their wavelength. It redistributes incoming light signals into multiple outputs without requiring any active conversion or electrical power (3).
