Common optical module types such as SFP, GBIC, XFP, and XENPAK, along with optical interfaces like FC, SC, and LC, each have their unique characteristics that make them suitable for specific application scenarios. This guide demystifies fiber optic splitters, explaining their design, operating principles, types, key specifications, and real-world applications. Whether you're a network engineer designing a PON (Passive Optical Network) or a homeowner curious about how your fiber connection works. The commonly seen Fiber Optic Splitters include PLC Fiber Optic Splitter and FBT Splitter. This principle allows a single input light beam to be split into N output light beams.