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 . 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 . In the backbone of modern Fiber-to-the-Home (FTTH) networks, optical splitters serve as the unsung heroes that enable cost-efficient connectivity for millions of subscribers. A splitter is not a filter like a wavelength division multiplexer (WDM). Rarely, there can be two inputs to provide potential redundancy of route. Light power goes in and light power coming out. Optical splitters are passive devices that allow a single fiber optic line to be divided into multiple lines, enabling the distribution of the same high-speed connection to various endpoints. They are crucial for network expansion, especially in scenarios where multiple locations need to be. Passive Optical LAN architectures are being deployed as the next generation design for the local area network. Optical Splitters connect to each PON port and replicate traffic downstream (to the end user's ONT) while combining end user traffic in the upstream. While passive optical local area networks (also called “passive optical LANs” or “POLANs”) have been an alternative option for LAN architecture, deployment requires extensive fiber knowledge.
