Process: Multiple fibers are twisted together, heated, and stretched to create a tapered region where their cores merge. A fiber optic splitter is a passive optical component that divides a single incoming optical signal into two or more outgoing signals, or combines multiple incoming signals into one. Unlike active devices (which require power), splitters operate without electricity, relying solely on the physics of. There are two main types of fiber splitters: fused fiber splitters and PLC (Planar Lightwave Circuit) splitters. They play a crucial role in various applications, such as telecommunications, data centers, and fiber-to-the-home (FTTH) installations. Fiber optic couplers are used in many areas.