High precision polishing method and device for arc discharge fiber cross section

Abstract

The present invention is fiber grinding and polishing arc discharge process and device. The device consists of a PZT height regulator, a motor speed controller, a precise guide conveying belt, a locating sensor and electrodes. The arc discharge polishing process is that the arc discharge between two electrodes produces high temperature effect to smelt the surface of the ground fiber so as to eliminate micro crack of the fiber surface with the fiber being controlled to move axially in the controlled moving speed. Microscopic observation shows that the polished fiber is transparent, stable in performance and without surface micro crack.

Description

technical field [0001] The invention relates to a high-precision polishing method and device for an arc discharge optical fiber grinding section, which uses a discharge arc between two electrodes to perform polishing treatment on the surface of the optical fiber after grinding, so as to remove microcrack damage generated during the optical fiber grinding process and improve the quality of the polished optical fiber The new optical fiber polishing equipment. The invention belongs to the technical field of optical fiber communication system, and especially belongs to the technical field of making high-precision optical devices by using the change of optical fiber cladding field. Background technique [0002] A key process in the manufacturing process of many high-precision optical fiber devices is the grinding of the end face of the fiber or the axial direction of the fiber. The pits and microcracks of the optical fiber are damaged, and the surface roughness is high, which ca...

AI Technical Summary

Problems solved by technology

[0002] A key process in the manufacturing process of many high-precision optical fiber devices is the grinding of the end face of the fiber or the axial direction of the fiber. The pits and microcracks of the optical fiber are damaged, and the surface roughness is high, which causes the scattering and absorption loss of the optical signal to be large. Although the mechanical polishing of the abrasive surface of the optical fiber with a small particle size powder can reduce the surface to a certain extent roughness, but the mechanical micropowder polishing method cannot eliminate the invisible microcrack losses on the surface of the polished optical fiber. If it is not treated, when the water vapor in the air enters these microcracks, the performance of the optical fiber device will be very fast. deterioration, which is extremely detrimental to improving the stability of the device

Moreover, since the diameter of the optical fiber is only 125 microns, in order to improve the smoothness of the grinding surface, the requirements for the material, size and purity of the mechanical micropowder are extremely high, which is not applicable in actual processing

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