Helical fiber grating manufacturing device and manufacturing method thereof

Abstract

The invention discloses a helical fiber grating manufacturing device and a manufacturing method thereof and relates to helical fiber gratings. The device comprises a direct current motor, a storage pipe, a metal rod, a heater, a temperature controller, a micro-channel, a power supply, a conductive base, a translation stage controller and an X-Y-axis precision translation stage. The manufacturing method comprises the following steps: adding electrostatic spinning raw materials into the storage pipe, regulating the temperature controller to heat so as to remove the moisture in the raw material, and regulating the temperature to the melting point of the raw materials; inserting the metal rod into a melt polymer, extending out of a discharge hole below the micro-channel, and regulating the rotating speed of the direct current motor until the needle tip is coated by the melt polymer, so that the molten liquid stably flows out; switching on the power switch, regulating the voltage of the conductive base to a preset negative pressure, starting the electrostatic spinning process, collecting electrospun fibers on the conductive base, reducing the temperature for curing in the deposition process, and forming a helical structure; enabling the X-Y-axis precision translation stage to drive the conductive base to move by virtue of the translation stage controller, thereby obtaining the helical fiber grating with the controllable diameter and screw pitch.

Description

technical field [0001] The invention relates to a spiral optical fiber grating, in particular to a spiral optical fiber grating manufacturing device and a manufacturing method thereof. Background technique [0002] The spiral fiber grating was first proposed by Kopp et al. in 2003. It is made of a quartz fiber with non-circular symmetry in the molten state and twisted at high speed. It has periodic refractive index modulation along the angular direction and the longitudinal propagation direction. It is a A new type of optical waveguide structure. It not only has the wavelength selection characteristics of traditional fiber gratings, but also has the polarization sensitivity characteristics that traditional fiber gratings do not have. The circularly polarized polarizer based on it has important applications in coherent optical communication, current sensing, and fiber optic gyro (Z .Lin, A.Wang, L.Xu, and et al., Generation of optical vortices using ahelical fiber Bragg grat...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to solve the problems of complex manufacturing equipment, high cost, complicated manufacturing process, and low efficiency of spiral fiber gratings, and provide a simple, low-cost, and efficient production of a wide range of adjustable fiber diameter and helical period. Spiral fiber grating manufacturing device and manufacturing method thereof

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