Optical fiber loosening device

Abstract

The invention relates to the technical field of optical fibers, and discloses an optical fiber loosening device. The device comprises a first fixed disc and a second fixed disc which are arranged in parallel at intervals; a plurality of supporting rods are arranged between the first fixed disc and the second fixed disc and distributed in the circumferential direction, and the two ends of each supporting rod are connected to the first fixed disc and the second fixed disc respectively. An output shaft of a driving unit is connected with a rotating shaft. One end of the rotating shaft sequentially penetrates through the first fixed disc and the second fixed disc and is detachably connected with the clamping assembly. The second fixed disc of the optical fiber loosening device can rotate relative to the first fixed disc; the outer diameter of the middle position of the roll core is reduced, the outer diameter of the end, close to the second fixed disc, of the roll core is also reduced, theoptical fiber on the supporting rod is changed into a loose state, the loose stability of the optical fiber is good, the diameter consistency of the obtained loose optical fiber is good, and the reliability of a test result is guaranteed; the manual optical fiber winding is replaced, the optical fiber coil can be taken down without damage, and the influence on subsequent tests is reduced to the maximum extent.

Description

technical field [0001] The invention relates to the field of optical fiber technology, in particular to an optical fiber loosening device. Background technique [0002] Before testing a fiber, it is necessary to obtain an unstressed fiber loop or loop. In the prior art, manual winding is usually used to obtain an unstressed optical fiber ring or optical fiber ring, and the diameter of the optical fiber ring or optical fiber ring cannot be well controlled, so that the test requirements cannot be met. Moreover, the diameters of the optical fiber rings or optical fiber rings of each circle have large differences and poor consistency, which leads to the fact that optical fibers with large effective areas or single-mode optical fibers that are not sensitive to bending loss cannot filter well when testing parameters such as cut-off wavelength. Except for high-order wavelengths, the stability and consistency of the test results are poor. [0003] Moreover, in the process of manua...

AI Technical Summary

Problems solved by technology

In the prior art, manual winding is usually used to obtain unstressed fiber rings or fiber rings, and the diameter of fiber rings or fiber rings cannot be well controlled, so that the test requirements cannot be met.

Moreover, the diameters of the optical fiber rings or optical fiber rings of each circle have large differences and poor consistency, which leads to the fact that optical fibers with large effective areas or single-mode optical fibers that are not sensitive to bending loss cannot filter well when testing parameters such as cut-off wavelength. In addition to high-order wavelengths, the stability and consistency of test results are poor

[0003] Moreover, in the process of manually winding the optical fiber, the human hand is always in contact with the optical fiber, and dust and sweat will adhere to the optical fiber, which will easily cause corrosion to the optical fiber and affect the test results when the optical fiber ring or optical fiber ring is used as a sample for environmental testing.

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