Realization method of a low-loss all-fiber high-pressure gas cavity system

Abstract

Disclosed is a low-loss all-fiber high-pressure gas cavity system. The system comprises a hollow fiber, a left-end tapering processed solid fiber, a right end tapering processed solid fiber, a left end hollow fiber and solid fiber butt joint packaging module, a right end hollow fiber and solid fiber butt joint packaging module, a metal airtight chamber, a high-precision barometer and a gas flow monitoring and inflation and deflation module, wherein the left end surface of the hollow fiber is in close connection with the metal airtight chamber through sealing glue; the metal airtight chamber is in close connection with the high-precision barometer; and the metal airtight chamber is in close connection with the gas flow monitoring and inflation and deflation module. The invention further discloses an all-fiber high-pressure gas cavity realization method for performing all-fiber packaging by use of the low-loss all-fiber high-pressure gas cavity system. An all-fiber high-pressure gas cavity with such remarkable advantages as low loss, high intensity, long-term stability and the like can be realized, the method and the system have wide application prospect and important application values in such aspects as a fiber gas Raman laser and the like.

Description

technical field [0001] The invention relates to the technical field of gas chambers, in particular to a low-loss all-fiber high-pressure gas chamber system based on hollow-core optical fiber and taper-processed solid-core optical fiber high-precision butt joint packaging technology and its implementation method. Background technique [0002] Anti-resonance 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, and mainly uses the anti-resonance principle to confine light waves to the micron-scale air core. It 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 be effectively increased, and the low-loss transmission characteristics can be used to ensu...

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Problems solved by technology

[0004] 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 Insufficiencies such as the use of the tapered solid core fiber can be inserted into the internal characteristics of the hollow core fiber to achieve high-precision docking and stable packaging of the two fibers, and then achieve miniaturization, low loss, high strength and long-term stability for specific gases All-fiber high-pressure gas chamber preparation system with characteristics such as

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