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Direct-pass type optical fiber sealing device and method for manufacturing same

A sealing device, a straight-through technology, applied in the coupling of optical waveguides, etc., can solve problems such as ineffective sealing, and achieve the effect of good sealing effect and improved mechanical properties.

Active Publication Date: 2010-04-21
NORTHWEST INST OF NUCLEAR TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The object of the present invention is to provide a straight-through optical fiber sealing device and its manufacturing method, which solves the technical problem that the prior art cannot effectively seal when the optical fiber is used as the transmission line to lead out the sealed explosive container

Method used

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  • Direct-pass type optical fiber sealing device and method for manufacturing same
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  • Direct-pass type optical fiber sealing device and method for manufacturing same

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Embodiment Construction

[0030] Such as Figure 1-Figure 6 As shown, a straight-through optical fiber sealing device includes a metal flange 2, and the flange 2 is provided with at least one optical fiber passing hole 5 parallel to the axial direction, and a metal tube 3 is fixed in the optical fiber passing hole 5, and the metal tube 3 is used to seal and fix the straight-through optical fiber 4 passing through it. The main sealing structure between the optical fiber passing hole 5 of the flange 2 and the metal tube 3 and between the metal tube 3 and the metallized part 10 of the straight-through optical fiber 4 are welded seal. The metal tube 3 includes a small-diameter tube 7 and a large-diameter tube 8 that are coaxially fixed together. The inner diameter of the small-diameter tube 7 matches the outer diameter of the optical fiber 4. Between 7, the filling metal solder is melted at high temperature to form a seal. The metal tube 3 also includes an optical fiber fixing tube 9 respectively fixed o...

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Abstract

The invention relates to a direct-pass type optical fiber sealing device and a method for manufacturing the same. The direct-pass type optical fiber sealing device comprises a metallic flange disk(2) provided with at least one optical fiber through hole(5) along the direction parallel to the axial line, and the inside of the optical fiber through hole(5) is fixedly provided with a metallic tube(3) used for sealing and fixing the direct-pass optical fiber(4) passing the inner part of the metallic tube; and the main sealing structures, between the optical fiber through hole(5) of the metallic flange disk(2) and the metallic tube(3) and between the metallic tube(3) and the metalized part(10) of the direct-pass optical fiber(4), are both of welding seal. The device solves the technical problem existing in the prior that the effective seal cannot be achieved when the optical fiber serving as the transmission line is led out of a sealed blast vessel, and has the advantages of keeping the integrity and continuity of the optical fiber and having good sealing effect.

Description

technical field [0001] The invention relates to a device for sealing an optical fiber and a method of manufacturing the same. Background technique [0002] When using a sealed explosion container for experiments, both the explosive device and the detection system are placed in the explosion container, and the detection system captures the signal generated at the moment of the explosion and then passes through the transmission line to the recording device. [0003] The measurement system using optical fiber as the transmission line has been widely used in other fields because of its wide transmission frequency bandwidth, strong anti-electromagnetic interference ability, and low transmission loss. In view of the superiority of optical fiber transmission, it is imperative to apply it to the experiment of sealed explosive containers. However, the sealing problem when the optical fiber is led out of the sealed explosive container has not been solved, thus limiting the application...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B6/36
Inventor 岳志勤宋岩韩长材
Owner NORTHWEST INST OF NUCLEAR TECH
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