Fiber optic PLC splitter can be made from many different materials, depending on the needs and nature of the application. Some common fiber optic PLC splitter materials include metals, plastics, ceramics, and glass, among others. When selecting materials, it is necessary to consider the environmental conditions that the separator needs to withstand, such as temperature, pressure, chemical properties, etc., so as to select suitable materials to ensure the performance and reliability of the fiber optic splitter.