FBT and PLC splitters are two widely used technologies for distributing optical signals in fiber-optic networks. While both perform the same basic function, their manufacturing methods, wavelength performance, splitting ratios, port uniformity, scalability, and application scenarios are quite different. This guide compares FBT vs. PLC splitters in detail, helping network designers and fiber-optic professionals understand their key differences and choose the right splitter for PON, FTTH, monitoring, and other optical networking applications.