A preparation method of transparent ceramic optical fiber based on isobam gel and melt spinning technology

Abstract

The invention discloses a preparation method of Nd:YAG laser transparent ceramic optical fiber based on Isobam gel and melt spinning technology, and belongs to the technical field of laser transparent ceramics. The preparation method first uses Isobam gel molding technology to prepare Nd:YAG transparent ceramic optical fiber slurry, and then adds polymer particles to strengthen its toughness to obtain a transparent ceramic optical fiber precursor, and then obtains a transparent ceramic optical fiber blank through a spinning machine, and finally The preparation of transparent ceramic optical fiber is achieved by warm isostatic pressing and vacuum sintering. The preparation method of the present invention not only has commercial characteristics such as no mold, strong operability, and easy large-scale production, but also has the advantages of controllable optical fiber diameter and high flexibility in the preparation process, and the transparent ceramic optical fiber produced has high toughness and high solid content. , High strength characteristics.

Description

technical field [0001] The invention belongs to the technical field of laser transparent ceramics, and in particular relates to a preparation method of Nd:YAG laser transparent ceramic optical fiber based on Isobam gel and melt spinning technology. Background technique [0002] Fiber lasers using fiber materials as gain media have developed rapidly in recent years due to their easy to obtain rational laser beam quality, ultra-high conversion efficiency, maintenance-free, high stability, small size, and easy internal thermal management of materials. , and quickly gained a foothold in markets such as high-power cutting and welding. From the initial output of a single fiber is only one hundred watts to the current kilowatt level, the research of domestic fiber lasers has made great progress and development, and the distance with foreign countries is shortening. [0003] Most of the traditional fiber lasers use glass fibers doped with rare earth ions as the gain medium. However...

AI Technical Summary

Problems solved by technology

[0004] Currently reported YAG-based transparent ceramic optical fibers, such as patents CN 110885244 B and CN 111270347 A, all suck ceramic slurry into capillary glass tubes, which not only cannot obtain slender ceramic optical fibers, but are also difficult to mass-produce in large quantities; patent CN 104451953 A discloses a method for preparing lutetium aluminum garnet transparent ceramic optical fiber by grouting. The slurry is injected into a self-made gypsum mold to prepare an optical fiber blank. It will be more obvious on the fiber blank, and it is easy to break. At the same time, due to the existence of the surface tension of the slurry, it is difficult to inject the slurry into a small-aperture gypsum mold, and may even form holes in the blank; patent CN 111620566 A discloses A multi-phase transparent ceramic optical fiber method is proposed. Firstly, the precursor glass is prepared as the core glass, and then the existing glass optical fiber drawing technology is used to prepare a transparent ceramic optical fiber. However, this patent requires two crystal phases to be precipitated together. Transparent ceramic optical fiber, and the content of fluoride phase is extremely high, it is easy to cause opaque phenomenon

Images