Wave shift optical fiber bending segmentation method

Abstract

The invention provides a wave shift optical fiber bending segmentation method. The method comprises the following steps: S1, winding a coil; S2, heating and softening the looped optical fiber; S3, changing the shape of the coil; S4, cooling and standing at room temperature; S5, segmenting the optical fiber coil; and S6, performing product quality inspection and sub-packaging. According to the winding coil in the step S1, the length of a single wave shift optical fiber is selected as L according to the winding requirement, continuous optical fibers are wound into N groups of circular coils with the perimeter of 2L through automatic equipment, centripetal force is applied to tangent points of the coils and a mold, the force is constant in the constant-speed winding process, the direction of the force always points to the center of a circle, and the optical fiber coils are arranged in a single layer and are compact and consistent in thickness. According to the invention, the optical fiber is wound into a circle, the coil shape is changed into a rounded rectangle after heating and softening, the bending effect is realized, then cooling and standing segmentation are carried out, the step of manually fixing the optical fiber into a clamp is omitted, the efficiency is improved, and the consistency of the bent optical fiber is good.

Description

technical field [0001] The invention belongs to the technical field of optical fiber bending and splitting, and in particular relates to a wave-shifting optical fiber bending and splitting method. Background technique [0002] The wave-shifting fiber is an important part of the scintillator neutron detector, which can collect and transmit the scintillation light on the scintillation screen. The wave-shifting fiber is composed of two parts, the core layer and the cladding layer. The working principle is that the wave-shifting material in the core layer is excited after absorbing the incident photons, and the excited atoms uniformly emit photons with longer wavelengths to the 4π spatial solid angle; when the photons When the exit angle (the angle between the exit direction and the interface normal) is greater than the critical angle, total reflection will occur; the total reflection photons are transmitted to both ends of the optical fiber and received by the photomultiplier t...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a wave-shifting optical fiber bending and splitting method, which aims to solve the problem that the optical fiber bending and splitting method in the prior art is not suitable for mass processing of wave-shifting optical fibers

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