Planar lightwave circuit (PLC) splitter is a type of optical power management device that is fabricated using silica optical waveguide technology to distribute optical signals from Central Office (CO) to multiple premise locations. PLC splitters are commonly found in PON(Passive Optical Networks), Datacom, LAN(Local Area Networks), CATV(Cable TV), LCP(Local Convergence Points), FTTx, and more applications, suitable for communication, medical, bank, building, large Office buildings, offices and other places with high-quality network requirements. Blockless PLC splitter is mainly used for the connection of outdoor optical distribution boxes or network cabinets, aiming to improve the utilization rate of customer ports.