PLC planar waveguide Splitter, also known as optical coupler, is an integrated waveguide optical power distribution device based on quartz substrate. Like coaxial cable transmission system, optical network system also needs optical signal coupling, branching and distribution, which requires optical Splitter to realize. As one of the most important passive devices in optical fiber link, it is an optical fiber junction device with multiple input terminals and multiple output terminals, especially suitable for connecting local terminal and terminal devices in passive optical network (EPON, GPON, BPON, etc.) and realizing optical signal branch.

Insert type fiber splitter is to load the required specification of PLC fiber splitter into the insert type structure. The insert type fiber splitter can be inserted into the indoor or field fiber splitter box, making the configuration of ODN more flexible and easier to use. Common specifications are 1*4, 1*8, 1*16, 1*32 and 1*64. See the following figure for details: