A kind of winding device for optical fiber bending loss test and using method thereof

Abstract

The application relates to a winding device for optical fiber bending loss test, comprising: a base; a turntable, mounted on the base and driven to rotate by a first driving machine; A sleeve column, installed on the turntable for the optical fiber winding, the interior of the sleeve column is hollow; a screw rod, arranged inside the sleeve column along the axial direction of the sleeve column, one end of the screw rod is connected with a second driver, the second The driver is used to drive the screw to rotate; the bracket, the bracket is connected to the screw through the thread; the parallel guide rail is arranged inside the sleeve column and is parallel to the screw rod; the parallel guide rail is connected with the bracket to guide the bracket to move along the parallel guide rail; The wire guide wheel is arranged on one side of the sleeve column, and is connected with the bracket through the cantilever, and the wire guide wheel is used to guide the optical fiber. The invention can automatically wind the optical fiber on a cylinder with a certain diameter, so that the measurement of the bending loss of the optical fiber can fully meet the requirements of various standards, and the operation difficulty of the test staff is reduced.

Description

technical field [0001] The application belongs to the technical field of optical fiber testing, and in particular, relates to a winding device for optical fiber bending loss testing. Background technique [0002] In ITU, IEC, GB and other standards, there are clear requirements for the bending loss test of optical fibers. For example, in the ITU-TG652 standard, it is stipulated that G652 optical fiber needs to test the bending loss at the wavelength of 1625nm. After 100 turns, when using a light source with a wavelength of 1625 nm, the added bending loss cannot exceed 0.1 dB compared to the case of no bending winding. For G657 fiber, there are stricter regulations. In the process of progressive winding, overlapping between optical fibers is not allowed, otherwise the test results will be affected by the bending caused by the overlapping. [0003] Under this requirement, the direct manual winding of the optical fiber is not only difficult to operate, but also inefficient, a...

AI Technical Summary

Problems solved by technology

Moreover, during the winding process, the tension of the optical fiber, whether there is overlap, whether the wiring is uniform, etc. will have a greater impact on the test results, and the operation is more difficult.

Although there is currently a method to simplify the measurement by reducing the number of turns proportionally and increasing the requirements of the test results, but this method will also introduce large measurement errors, which will reduce the reliability of the measurement results

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