Macrobend loss testing device for optical fiber automatic winding counting and test nethod thereof

Abstract

The invention relates to the field of optical fiber manufacturing detection and discloses a macrobend loss testing device for optical fiber automatic winding counting. An optical fiber disc pay-off device, a line arrangement device and an optical fiber winding device are sequentially arranged on a rack; the line arrangement device is provided with a lead screw; a fiber guide hole is formed in thelead screw; and an optical fiber paid off by the optical fiber disc pay-off device passes through the fiber guide hole and is pulled to the optical fiber winding device; the optical fiber winding device is provided with a diameter fine adjustment unit; a motor rotating shaft drives an optical fiber winding device rotating shaft through a belt wheel; the optical fiber winding device rotating shaftdrives the lead screw of the line arrangement device to rotate through the belt wheel; and the optical fiber winding device rotating shaft drives an optical fiber winding counter rotating shaft through the belt wheel. Through the structure, after the number of turns of winding reaches the standard requirement, the shaft diameter fine adjustment device is loosened, so that the optical fiber meetingthe standard requirement is not stressed after being wound, and the accuracy of an optical fiber macrobend loss test result is improved. Meanwhile, the invention further discloses a test method of the device.

Description

technical field [0001] The invention relates to the field of optical fiber manufacturing and testing, in particular to a macrobending loss testing device and a testing method for optical fiber automatic winding counting. Background technique [0002] With the acceleration of the commercialization of 400G systems, the issuance of 5G licenses, and the rapid acceleration of 5G deployment, the application of 5G will be accompanied by higher requirements for high transmission rate, large capacity, and long-distance transmission, and higher requirements for fiber attenuation. The higher and higher the requirements for the reliability of communication are getting higher and higher. Optical fiber is considered to be the best transmission medium for high-bandwidth and long-distance transmission. One of the key factors to realize these functions is that optical fiber has very low loss, and optical power loss is a very important determinant of network performance. [0003] The loss ma...

AI Technical Summary

Problems solved by technology

For some types of optical fibers, the number of winding turns is less, and manual operation is a little easier, but for some types of optical fibers, the number of winding turns required reaches hundreds or even more, and manual winding makes the entire test efficiency lower;

[0007] 2) The wound optical fiber is always under stress, and the macrobending loss tested in the stressed state cannot truly reflect the macrobending loss characteristics of the optical fiber itself;

[0008] 3) It is not intuitive to read the number of winding turns of the optical fiber. Some winding devices may design circular grooves on the shaft, so that the optical fiber is wound in circular grooves at a certain distance, but when the winding circle required by the optical fiber If the number reaches hundreds or even more, it will make it difficult to read the number of winding circles;

[0009] 4) The speed of fiber winding is not adjustable

The winding device is basically manually wound up, which will lead to uncontrollable force on the fiber and uncontrollable winding speed, especially when there are many tests or different testers test the macrobend loss of the fiber, which may affect the test results;

[0010] 5) The spacing between adjacent optical fibers after winding is not adjustable or difficult to adjust

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