An all-fiber gas cavity system with gas circulation function and its realization method

Abstract

An all-fiber gas chamber system having a gas circulation function comprises a hollow fiber, a left end and right end tapered solid core optical fiber, a left end and right end hollow fiber and solid core fiber abutting and packing module, a gas chamber gas circulation module, a gas chamber inflating module and a gas chamber gas extraction module, wherein the hollow fiber is abutted and packed with the left end and right end tapered solid core optical fiber through the left end and right end hollow fiber and solid core fiber abutting and packing module, the side surface of a hollow fiber is cut open and is tightly connected with the gas chamber gas circulation module, the gas chamber gas circulation module is tightly connected with the inflating module, and the gas chamber gas circulation module is tightly connected with the gas chamber gas extraction module. The invention further relates to an all-fiber gas chamber realization method for gas circulation structure employing the system. A hollow fiber gas camber with prominent features of low loss, good gas circulation flow and heat dissipation performance and long-term stability can be achieved, and the hollow fiber gas camber can be used for high-power laser output.

Description

technical field [0001] The invention relates to an all-fiber gas chamber system with gas circulation function and its realization method, especially the high-precision butt joint packaging of solid-core optical fiber based on hollow-core optical fiber and tapered processing, and realizes by cutting a series of openings on the surface of hollow-core optical fiber An all-fiber gas cavity system with gas circulation function and its realization method. Background technique [0002] Free-boundary hollow-core fiber is a new type of hollow-core fiber that has been developed rapidly in recent years. It adopts a light-guiding principle different from that of traditional silica fiber total internal reflection. The transmission is carried out in the core, which has the characteristics of simple structure, convenient design, low transmission loss, and weak nonlinear effect. By filling the hollow core fiber with gas, the interaction area and intensity of the light wave and the gas can ...

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Problems solved by technology

[0003] The technical problem to be solved by the present invention is: to overcome the large volume and poor stability of the existing vacuum isobaric hollow fiber gas cavity, and the excessive fusion loss of the existing all-fiber type hollow core fiber gas cavity based on direct fusion splicing technology Insufficient, such as using the tapered solid core optical fiber can be inserted into the internal characteristics of the hollow core optical fiber, combined with the outstanding characteristics of the gas circulation pressure inside the optical fiber gas cavity can be controlled at any time, good heat dissipation, etc., to achieve high-precision docking and stable packaging of two optical fibers, Then realize the hollow-core fiber gas cavity system with low loss, high intensity, gas circulation flow, good heat dissipation, long-term stability and high-power laser output for specific gases

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