Cables Plus USA can supply custom fiber optic splitters to meet your specific requirements. Available in PLC splitters, also called Planar Lightwave Circuit. PLC splitters are based on planar lightwave circuit technology. As well as FBT splitters Fused Biconical Taper splitters, which are two or more pieces of optical fibers that are fused/tapered together fiber devices. Splitters are method of splitting a single fiber optic transmission from a 100% input, into multiple fiber at a specific % of the signal, Splitters are a passive optical device.