XUEMEI The loss is insensitive to light wavelength and can meet the transmission needs of different wavelength. The signal can be distributed uniformly to the user. Compact structure, small volume, can be directly installed in the existing various junction box, do not need to leave a large installation space. Multi-way cost is low, the more roads, the more obvious cost advantage. (1) The taper coupler has more than 20 years of history and experience, many equipment and processes only need to be used, and the development cost is only a few tenths or even a few percent of PLC. (2) The raw materials are only easily available quartz substrates, optical fibers, heat shrinkable tubes, stainless steel tubes and less glue, and the total is not more than one dollar. The investment depreciation cost of machines and instruments is less, 1 2, 1 4 Equal low channel splitter is low cost. (3) The splitting ratio can be monitored in real time as needed, and an unequal splitter can be made. Application field 1) Optical fiber communication system 2) Optical fiber LAN 3) CATV 4) FTTH 5) Optical fiber sensor 6) Measuring instruments Package included:1pcs*Optical Splitter