PLC optical splitter — planar waveguide optical splitter is an integrated waveguide optical power splitter based on quartz substrate, currently available in 1×N and 2×N types.1×N and 2×N splitters evenly input optical signals from a single or double inlet to multiple exits, or work backward to import multiple optical signals into single or double optical fibers. There are currently four types,ABS box splitter, Cassette PLC Splitter, Mini Steel Tube PLC splitter and Bare Fiber PLC Splitter.