Polishing method of glass sleeve for chalcogenide glass optical fiber preform prepared by tube rod method

Abstract

The invention discloses a polishing method of a glass sleeve for manufacturing a chalcogenide glass optical fiber preform rod by the rod-in-tube method. The polishing method is that a special polishing device is adopted to perform initial polishing, rough milling, fine milling and precise milling for the inner wall of the glass sleeve for the chalcogenide glass optical fiber preform rod. During polishing, the glass sleeve sleeves a circular stainless steel rod while the circular stainless steel bar is kept in a horizontal state; the glass sleeve is held by hands to reciprocate and roll back and forth along the circular stainless steel rod; the inner wall of the glass sleeve is subjected to frictional cutting through rolling tooth textures in the surface of the circular stainless steel rod, so as to achieve efficient and high-quality polishing of the inner wall of the glass sleeve manufacturing chalcogenide glass optical fiber preform rod by the rod-in-tube method. The polishing method is simple in steps, high in operability, high in polishing efficiency, outstanding in polishing effect, and applicable to polishing of the inner wall of the glass sleeve of which the internal diameter exceeds 1.5mm.

Description

technical field [0001] The invention relates to a polishing method, in particular to a polishing method for preparing a glass sleeve used for a chalcogenide glass optical fiber preform by a pipe rod method. Background technique [0002] Optical fibers based on chalcogenide glass matrix have a wide range of applications in the fields of mid-infrared laser energy guidance, mid-infrared supercontinuum generation, and infrared fiber optic bundle imaging due to their excellent mid-to-far infrared transmission properties. In the common preparation process of chalcogenide glass optical fiber, the core is the preparation of optical fiber preform. At present, the preparation methods of multi-component chalcogenide glass optical fiber preform mainly include double-crucible method (Double-crucible), extrusion method (Extrusion) and tube-rod method (Rod-in-tube) based on drilling or rotation, such as CN87104844 A disclosed method of manufacturing an optical fiber with a core and a glas...

AI Technical Summary

Problems solved by technology

[0004] In the polishing method of existing chalcogenide glass optical fiber, it is mainly aimed at the polishing of bulk and flake chalcogenide glass or optical fiber (such as CN104589172A and CN103978418A patents). The inner hole of the casing is small in size and long in depth, so there is no polishing method and polishing device for effectively polishing it

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