Some knowledge of optical fiber optic splitter

The function of optical fiber optic splitter is to divide the main optical fiber cable into several parts through the optical splitter and connect them to the road travel equipment with optical fibers and transmit them to the user unit, and they are complementary to each other.

A fiber optic splitter is an optical power distribution device based on an integrated waveguide on a quartz substrate, similar to a coaxial cable transmission system. The optical network system uses optical signals coupled to the branch distribution. The fiber optic splitter is one of the most important passive components in fiber optic links. It is a fiber optic serial device with many input and output terminals, especially suitable for passive optical networks to connect MDF and terminal equipment and branch optical signals.

Optical splitters can be divided into two types: fused taper type and planar waveguide type according to the light splitting principle. The fused taper method is to disturb the two optical fibers with the coating layer removed in a certain method, and melt them under high temperature heating, and at the same time, they are heated to a high temperature. The two sides are stretched, and finally a special waveguide structure in the form of a double pyramid is formed in the heating area. By controlling the twisting angle of the fiber and the length of the stretching, different light splitting ratios can be obtained. Finally, the taper area is cured on the quartz substrate with curing glue and inserted into the stainless copper tube, which is the optical splitter.

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