提出了一种通过白光干涉仪来检测陶瓷插芯中光纤是否存在断点的方法。通过使用白光干涉仪使陶瓷端面和插芯内光纤断点处两个表面的反射光分别与扫描臂上反射镜的反射光发生干涉, 然后, 根据两条干涉条纹的强度和间距, 便可检测出陶瓷插芯内是否有光纤断点以及陶瓷插芯内断点离光纤连接头端面的位置。试验结果表明, 该方法的测量灵敏度可达0.03mm。此方法非常适用于检测生产和使用过程中的光纤/光缆连接器陶瓷插芯中的光纤是否存在断点, 并进行精确的分析, 保证连接器的质量及可靠性, 具有准确性高、操作简单的特点。

A method based on white-light interferometer was proposed to detect the optical fiber has breakpoints or not inside the ceramic ferrule of optical cable connector. Using the white-light interferometer, the reflected light of the two surfaces on ceramic ferrule end and breakpoint will respectively interfere with the reflected light of the reflector on the scanning arm. Then, according to the intensity and distance of the two interference fringes, whether there is breakpoint inside in the ceramic ferrule can be detected, and also can the distance from the breakpoint to the end face of optical fiber connector can be located. Experimental results show that the detection sensitivity of this method can reach 0.03mm. This method is very suitable for breakpoint detection and accurate analysis in production and practical use.