Optical fibre connector face geometrical parameter measuring instruments

Abstract

A measurer applying Twyman-Green interferometer structure is featured as having light source, setting collimation extender system, beam-splitter, light chopper and plane reflector bound on piezoelectric ceramics in sequence on th same optical axis; setting optical fibre connector at one end of beam splitter and lens as well as detector on another end, connecting detector to computer through A / D converter and connecting computer to the piezoelectric ceramics through driving circuit.

Description

technical field [0001] The invention relates to an optical fiber connector, and relates to an end face geometric parameter measuring instrument of the optical fiber connector and a measuring method for the end face geometric parameter of the optical fiber connector. Background technique [0002] Fiber optic connectors are one of the most widely used basic components in optical communications, fiber optic sensors and other fiber optic applications. The geometric parameters of the end face of the fiber optic connector determine its technical performance such as insertion loss, return loss, repeatability and interchangeability. Therefore, it is very necessary to detect the geometric parameters of the end face of the optical fiber connector in the process of grinding production, finished product inspection and assembly. The geometric parameters of the end face of the optical fiber connector mainly include the radius of curvature, the eccentricity of the vertex of the spherical ...

AI Technical Summary

Problems solved by technology

Since the two rarely form step-like mutations, it is difficult to distinguish the relative position of the optical fiber and the ferrule body from the three-dimensional shape data of the end face, and it is difficult to accurately determine the position of the center of the optical fiber, so it is difficult to ensure the eccentricity of the vertex of the spherical surface and the height of the optical fiber. and the measurement accuracy of the inclination angle of the end face

[0007] (2) This technology uses Newton rings to measure the radius of curvature of the end face, which must be manually interpreted by the Newton ring fringe series, the accuracy is not high, and manual intervention is required, it is not suitable for instrumented automatic measurement

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