Coupling connector of optical fiber

Abstract

The invention relates to a coupling connector of an optical fiber, which comprises a first coupling piece and a second coupling piece. The first coupling piece comprises at least a first coupling lens, and the second coupling piece comprises at least a second coupling lens. The first coupling piece is provided with at least a first optical fiber hole, and the second coupling piece is provided with at least a second optical fiber hole. At least two spliced holes are arranged on the surface of the first coupling piece opposite to the second coupling lens, and the second coupling piece comprises at least two spliced columns. The spliced columns are frustums, and one end of each of the spliced columns, which is small in diameter, is far away from the second coupling piece. The inner wall of each spliced hole comprises a circular face part and two plane parts. The two plane parts are intersected with each other and matched with the circular face part to clamp the spliced columns when the spliced columns enter a predetermined depth of the spliced holes.

Description

technical field [0001] The invention relates to an optical fiber coupling connector. Background technique [0002] Optical fiber coupling connectors are used to connect different optical fibers so that optical signals can be transmitted between different optical fibers. Existing optical fiber coupling connectors generally include a first coupling part and a second coupling part matched with the first coupling part, and the first coupling part and the second coupling part respectively include at least one coupling lens , while the first coupling part and the second coupling part are respectively connected to at least one optical fiber, the coupling lens of the first coupling part and the coupling lens of the second coupling part cooperate with each other to realize the signal transmission between the two Pass between the optical fibers of the coupler. [0003] In the optical fiber coupling connector, the connection precision of the first coupling part and the second couplin...

AI Technical Summary

Problems solved by technology

[0003] In the optical fiber coupling connector, the connection precision of the first coupling part and the second coupling part is particularly important, because the connection precision of the first coupling part and the second coupling part determines the distance between the coupling lenses. If the alignment accuracy between the coupling lenses decreases, it will seriously affect the stability and efficiency of optical fiber transmission

The first coupling part and the second coupling part of the existing optical fiber coupling connector are mostly connected to each other by a mating structure in which the insertion hole and the insertion post are connected. The inner surface of the insertion hole and the outer surface of the insertion post are both As a conical surface, this design reduces the assembly tolerance requirements between the first coupling part and the coupling part, so that the first coupling part and the second coupling part can be connected relatively easily, however , the connection accuracy of the first coupling piece and the second coupling piece is easily affected by the insertion depth of the insertion post into the insertion hole

If the force of inserting the splice post is not enough, the splice post cannot be inserted to the preset position, which may cause a deviation in the alignment between the coupling lenses, affecting the stability and efficiency of optical fiber transmission

However, since it is difficult to determine the force of inserting the post, it is difficult to judge whether the first coupling and the second coupling are connected accurately.

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