Optical fiber grating package structure

Abstract

The invention discloses an optical fiber grating package structure. The structure comprises a base layer and sealing rings; the base layer comprises an optical fiber grating body, ceramic ferrules arefixedly connected to a top and bottom of an inner cavity of the base layer; one side, far away from the base layer, of each ceramic ferrule is fixedly connected with the optical fiber grating body; the amount of the sealing ring is two, and the sealing rings comprise an upper sealing ring and a lower sealing ring. Through the cooperative use of the ceramic ferrules, a polytetrafluoroethylene layer, an aluminum-foil layer, a steel material layer, the upper sealing ring, the lower sealing ring, a fixture block, a neck, a threaded hole and a bolt, the problem that the use occasion of the opticalfiber grating is limited since the existing optical fiber grating is bad in fracture and tensile property under the exposure condition and is bad in temperature resistance is solved; the optical fiber grating package structure has the advantages of being convenient for use and good in package effect; the optical fiber grating can be well protected, and the use occasion is more extensive.

Description

Technical field [0001] The invention relates to the technical field of optical fiber gratings, in particular to a fiber grating packaging structure. Background technique [0002] Fiber grating is a kind of diffraction grating formed by the axial periodic modulation of the refractive index of the fiber core through a certain method. It is a passive filter component. Because the grating fiber has small size, small splice loss, and full compatibility with fiber , It can be embedded in smart materials, and its resonance wavelength is more sensitive to changes in the external environment such as strain, refractive index, concentration, etc., so it has been widely used in the field of optical fiber communication and sensing. [0003] Fiber gratings are widely used due to their many advantages, but the existing fiber gratings have poor bending and tensile performance when exposed, and the temperature resistance of fiber gratings is also poor, resulting in limited use of fiber gratings, so...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a fiber grating packaging structure, which has the advantages of convenient use and good packaging effect, and solves the problem of poor bending resistance and tensile performance of the existing fiber grating in the case of being exposed, and the temperature resistance of the fiber grating It is also poor, which leads to the problem that the use of fiber gratings is limited

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