Optical fiber uniform stress applying device

Abstract

The invention relates to the technical field of optical fiber testing, and particularly to an optical fiber uniform stress applying device. The optical fiber uniform stress applying device comprises an optical fiber clamp, an elastic deformation member, a fixed support and a linear guide rail. The optical fiber clamp and fixed support are fixed on two ends of the linear guide rail. The optical fiber clamp comprises an optical fiber clamping structure and a slide block structure and can clamp the optical fiber for sliding on the linear guide rail. Two ends of the elastic deformation member are respectively fixed with the optical fiber clamp and the fixed support. The optical fiber clamp can move on the linear guide rail relative to the fixed support. The optical fiber uniform stress applying device can apply a uniform stress on the optical fiber so that the optical fiber in a stable stretched state, thereby preventing optical fiber communication interference by an applied stress and ensuring high optical fiber testing quality.

Description

technical field [0001] The invention relates to the technical field of optical fiber testing. Background technique [0002] Optical fiber is the abbreviation of optical fiber. Optical fiber communication is a communication method in which light waves are used as information carriers and optical fibers are used as transmission media. In order to study and improve the quality of optical fiber communication, it is necessary to do various optical experiments on optical fiber. In the experiment, the optical fiber is often required to be in a stretched state, so a certain uniform stress must be applied to the optical fiber. [0003] At present, there are various devices for applying stress to optical fibers. Most of them take a section of optical fiber in the built-up optical path, clamp one end on the optical fiber clamp, and place the other end flat on another optical fiber holder, and hang it next to the optical fiber clamp. A weight with a certain mass keeps the optical fib...

AI Technical Summary

Problems solved by technology

Because the weight is in a suspended state, it is easy to shake, so that the force generated by the stress is uneven, and it is easy to break the optical fiber

For example, when writing long-period fiber gratings, the method of hanging weights is easy to break the fiber. At the same time, the weight moves slightly during the shaking process, causing the fiber to tilt, and the energy projected to the fiber is not uniform, which easily causes the fiber Bragg grating to write. Low modulation efficiency, poor stability, shallow modulation depth and other undesirable results

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