Fiber optic splitters offer a cost-effective, practical solution by dividing a single fiber line into multiple outputs. Optical splitters are a very important component in fiber optic links, widely used in. Splitter Fiber Assembly, SPLIT200-UV-VIS, with 200 µm fiber core size, 2 m long, and silicone-coated steel monocoil jacketing. T PON standards such as GPON, XGS-PON and new 25 and 50G standards. Thorlabs offers a varied selection of single mode (SM), polarization-maintaining (PM), multimode (MM), and double-clad fiber couplers, as well as 1x8 and 1x16 SM PLC splitters; 1x4, 1x8, and 1x16 PM PLC splitters; wideband multimode circulators; RGB combiners; and WDMs.