Packaging structure of fiber bragg grating
A fiber grating and packaging structure technology, applied in clad optical fiber, optical waveguide and light guide, etc., can solve the problems of inconvenient operation and cumbersome packaging structure, and achieve the effects of improving the use effect, improving the connection stability, and improving the packaging effect
Pending Publication Date: 2022-04-01
ANHUI UNIV OF SCI & TECH
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Problems solved by technology
[0006] In order to make up for the deficiencies of the existing technology and solve the problems of cumbersome and inconvenient operation in the packaging structure of the fiber grating and the stress applied to the fiber grating, the present invention proposes a fiber grating packaging structure
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[0051] As an embodiment of the present invention, paraffin wax is encapsulated on the outer surface of the puncture member;
[0052] During work, before the epoxy resin inside the device is cured, paraffin wax is encapsulated on the outer surface of the puncture piece, so as to cover the puncture piece with sharp puncture parts, effectively avoiding the puncture piece during the transportation of the device. The sealing bag 8 is punctured, and the epoxy resin inside the sealing bag 8 flows out, thereby causing the problem that the epoxy resin flows out from the gap of the device, effectively improving the use effect and practical performance of the device;
[0053] And when curing the epoxy resin installed inside the device, because the temperature required for curing the epoxy resin is greater than the melting point of the paraffin, the paraffin has been dissolved before the epoxy resin is cured, and the amount of paraffin is small and does not affect the epoxy resin. curing,...
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The invention belongs to the technical field of fiber bragg grating packaging structures, and particularly relates to a fiber bragg grating packaging structure which comprises a sleeve, a first sliding part, a second sliding part, a fiber bragg grating, a bearing rod and a memory spring, the bearing rod is fixedly connected to the side, close to the end of the sleeve, of the outer surface of the sleeve and located in a sealing cavity, and the memory spring is arranged in the sealing cavity. One end of the memory spring is fixedly connected to the side wall of the bearing rod, the other end of the memory spring is fixedly connected to the inner wall of the side, far away from the bearing rod, of the sealing cavity, the sealing bag is placed in the sealing cavity, epoxy resin and a puncture part are arranged in the sealing bag, and when the first sliding part moves in the direction far away from the middle of the sleeve, the first sliding part is inserted into the sealing cavity. The puncturing piece punctures the correspondingly arranged sealing bag, so that the epoxy resin flows into the sealing cavity; the optical fiber grating packaging structure is simple in structure, and can solve the problems that when the optical fiber grating is packaged, a packaging structure for applying stress to the optical fiber grating is tedious and inconvenient to operate.
Description
technical field [0001] The invention belongs to the technical field of optical fiber grating packaging structures, in particular to a packaging structure of optical fiber gratings. Background technique [0002] Fiber Bragg grating is a kind of diffraction grating formed by axial periodic modulation of the refractive index of the fiber core by a certain method. , can be embedded in smart materials, and its resonance wavelength is 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] In the field of temperature sensors, fiber grating packages are generally divided into single-head and double-head packages. figure 1 shows a fiber grating capillary tube double-head packaging structure, when the fiber grating is packaged, it is usually necessary to apply a certain prestress to the fiber grating so that the temperature sensor has good repe...
Claims
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IPC IPC(8): G02B6/02
Inventor 李学超常层高骁
Owner ANHUI UNIV OF SCI & TECH