By dividing a single optical signal from a central Optical Line Terminal (OLT) into multiple outputs for Optical Network Terminals (ONTs) at users' homes, splitters eliminate the need for dedicated fibers to each residence—slashing infrastructure costs while scaling network reach. In this guide, we'll break down what fiber splitters do, how they work, and. An Optical Splitter, also known as a beam splitter, is a passive optical device that divides a single input optical signal into two or more output signals. Conversely, it can also combine multiple signals into one. Imagine you have a single fiber cable bringing blazing-fast internet to your home or office, but you want to connect multiple. Yes, a fiber splitter can be used for home networking, but its applicability depends on several factors.