Although often viewed as a simple passive device, the choice of splitter type, split ratio, and connector interface has a direct impact on network performance, scalability, installation efficiency, and long-term operational cost. In fiber-optic networks like FTTx and PON, PLC splitters are key components for distributing optical signals to multiple users. One important note is that splitting architectures should be seen as tools that can be mixed and matched to. Gigabit Passive Optical Networks (GPON) have revolutionized fiber-optic broadband by offering high-speed connectivity to multiple users over a single fiber.