An optical fiber uniform stress applying device

Abstract

The invention relates to the technical field of optical fiber testing, and specifically discloses an optical fiber uniform stress application device, which includes an optical fiber clamp, an elastic deformation member, a fixing frame and a linear slide rail, and the optical fiber clamp and the fixing frame are respectively fixed on the linear sliding rail The two ends of the optical fiber clamp include a fiber clamping structure and a slider structure, which can clamp the optical fiber and slide on the linear slide rail. The two ends of the elastic deformation member are respectively fixed on the optical fiber clamp and the fixing frame. The fiber holder can be moved relative to the fixed frame on the linear slide rail. The invention can apply continuous and uniform stress to the optical fiber, so that the optical fiber is in a stable stretching state, avoiding the interference of the applied stress on the optical fiber communication, and ensuring the quality of the optical fiber test.

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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