Optical splitters are the key passive component that enables “sharing” of OLT resources: Cost Efficiency: A single OLT port can serve 8–64 ONTs via a splitter, reducing the number of OLTs, fibers, and deployment labor needed. For example, optical splitters send light to many output ports. This lets you connect more users to one network terminal. This helps with signal grouping. Knowing the difference between a splitter and an optical coupler. By dividing a single optical signal from a central Optical Line Terminal (OLT) into multiple outputs for Optical Network Terminals (ONTs) at users' homes, splitters eliminate the need for dedicated fibers to each residence—slashing infrastructure costs while scaling network reach. Traditional GPON networks often employ 1:32 or 1:64 splits. An optical coupler is a passive device that can split or combine signals in optical fibers. 1x32 splits were common in North America for G-PON architectures. In general, when the distance between the cores of two optical fibers is close.
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