Method and device for detecting end surface of optical fiber connector

A fiber optic connector and detection method technology, applied in the direction of measuring devices, optical devices, optical instrument testing, etc., can solve the problems of surface damage and pollution of the tested part, difficulty in measuring the end face of the optical fiber, damage to structural components, etc., and achieve automation High, strong anti-interference ability and accuracy, easy to use effect
CN101852587AInactive Publication Date: 2010-10-06ZHEJIANG NORMAL UNIVERSITY
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
ZHEJIANG NORMAL UNIVERSITY
Publication Date
2010-10-06
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention relates to a detector for the end surface of an optical fiber connector. In the detector, an optical signal of a laser source is split into a reference light path and an object light path, wherein reference light is focused and reflected to enter into a photoelectric converter and then transmitted into a computer through a USB interface; object light is reflected and focused, and then enters to the end surface of a detected optical fiber connector on an optic fiber connector holder through a light incidence port of the optical fiber connector; the transmitted object light and the reflected reference light which are reflected and amplified by the optical signal interferes on the symmetrical surface of the incidence surface of a beam-splitting mirror on which the detected optical fiber is reflected, and then the transmitted object light and the reflected reference light are acquired by another photoelectric converter and transmitted into the computer through the USB interface; and after the optical signal is acquired, the computer carries out de-noising on a hologram by using software and reconstitutes a three-dimensional hologram according to a two-step phase shift method. The invention can not only detect parameters of ovality, concentricity, and the like of a connector fiber core and a connector cover, but also reconstitute the three-dimensional topography on the surface of the end surface fiber core area and monitor the surface appearance and the height of the fiber core; in addition, the invention has high detection accuracy, small system size and high automation degree and is friendly in a user interface and convenient to use.
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Description

technical field

[0001] The invention belongs to the technical field of digital holography for detecting the appearance of an optical fiber end face used in an optical fiber connector, in particular to a method and a device for detecting the end face of an optical fiber connector. technical background

[0002] The geometric parameters of the end face of the fiber optic connector, such as the coordinates of the center of the fiber core, the offset of the vertex of the spherical surface, the unevenness of the surface, the height of the fiber core, the inclination angle of the end face, etc., are the main factors affecting the performance of the fiber optic connector. Therefore, in the actual production process of the connector, the accuracy of the end face of the optical fiber connector is very high, and it is necessary to detect the end face of the optical fiber connector in real time to ensure that various defect errors are within the allowable range. If there is a defect in ...

Claims

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