This professional analysis compares FBT and PLC splitters across performance metrics—such as insertion loss, uniformity, wavelength stability, and power handling—and cost implications for common PON splitting configurations, including low-ratio (1x2, 1x4). This professional analysis compares FBT and PLC splitters across performance metrics—such as insertion loss, uniformity, wavelength stability, and power handling—and cost implications for common PON splitting configurations, including low-ratio (1x2, 1x4). In passive optical networks (PONs), optical splitters are essential for distributing signals from a central optical line terminal (OLT) to multiple optical network units (ONUs), enabling efficient fiber-to-the-home (FTTH), fiber-to-the-building (FTTB), and enterprise broadband deployments. Fused. In fiber-optic networks like FTTx and PON, PLC splitters are key components for distributing optical signals to multiple users. However, each splitter has complex parameters, including insertion loss, return loss, polarization-dependent loss, and uniformity., telephony performances, antenna designs, wireless communications, digital communications, optical communications, CATV transmission systems, airborne systems), studying the nature and characteristics of the splitter. Calculating splitter loss in optical fibers is essential for designing efficient optical networks. Split ratio selection directly affects power margin, network scalability, and fault isolation complexity. Each additional output branch increases theoretical.