Wide-angle rotation optical fiber device

Abstract

The invention relates to a wide-angle rotation optical fiber device. The wide-angle rotation optical fiber device comprises an optical fiber base with a trunking, an optical fiber pressing mechanism, an optical fiber reversing mechanism, a rotation control mechanism, and a dial; the optical fiber base with the trunking and the rotation control mechanism are fixedly integrated; the dial is installed on the rotation control mechanism; the optical fiber pressing mechanism is installed in the front part of the optical fiber base with the trunking; the middle part of the optical fiber base with the trunking is provided with a cylindrical bulge; and the optical fiber reversing mechanism is installed on the cylindrical bulge. The wide-angle rotation optical fiber device is capable of fixing the optical fiber, providing the twisting moment needed by the wide-angle rotation of the optical fiber, effectively avoiding the relative sliding between the optical fiber and the inner wall of the clamp, greatly reducing the rotation sliding error, and achieving the more accurate optical fiber rotation control.

Description

technical field [0001] The invention relates to the field of optical fiber post-processing, in particular to a large-angle rotating optical fiber device. Background technique [0002] In addition to being a communication medium, optical fiber itself is sensitive to environmental changes. Therefore, optical fiber sensing technology is increasingly showing its special and important role in the fields of industry, agriculture, transportation, energy, medical care, science and technology, and military technology. . In order to increase the sensitivity of the fiber or obtain some new optical properties, it is necessary to do further post-processing on the fiber, such as tapering, corrosion, coating, rotation, etc. After spinning, the special helical structure of the optical fiber leads to some new characteristics of the optical fiber, based on which some new optoelectronic devices can be prepared, such as all-fiber polarizers, filters, lasers and various sensor devices . [00...

AI Technical Summary

Problems solved by technology

In order to rotate and deform the optical fiber, a large torsional moment needs to be provided, so the technology is difficult

At present, the torsional moment provided by the optical fiber rotating fixture on the market mainly comes from the static friction between the fixture and the optical fiber. The optical fiber is compressed by the tightness of the contact between the pressing block and the base. When the rotation angle is small, the torsional moment formed at this time is smaller than the static friction. When the optical fiber rotates continuously and the rotation angle is large, the formed moment will overcome the static friction force, so that the optical fiber and the clamp will slide relative to each other, and the optical fiber cannot be continuously rotated at a large angle. If the static friction is increased force, too much pressure may damage the fiber

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