Grating preparation method and grating
A technology of grating and Bragg grating is applied in the grating preparation method and the field of grating, and can solve the problems of poor grating stability and the like
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Embodiment 1
[0072] Please refer to figure 2 , the grating preparation method is applied to a grating preparation device, the grating preparation device includes a substrate, and the grating preparation method includes:
[0073] S100, forming material layers in sequence by using thermoplastic materials on the substrate, wherein the material of each adjacent material layer is different;
[0074] Among them, thermoplastics are plastics that have plasticity at a certain temperature, solidify after cooling, and can repeat this process. The grating preparation device forms the material layer on the substrate by spraying or coating.
[0075] Wherein, since the Bragg grating is alternately composed of materials with different refractive indices, in order to meet the performance requirements of the prepared grating, the refractive index of the first material is not equal to the refractive index of the second material. The grating is composed of two kinds of thermoplastic materials, and the two ...
Embodiment 2
[0085] Please refer to image 3 , in Embodiment 1, the above step S100 includes:
[0086] S110, heating the thermoplastic material;
[0087] S120 , if it is detected that the material temperature of the thermoplastic material is greater than or equal to the preset melting temperature, form material layers sequentially through the thermoplastic material.
[0088] Wherein, when the thermoplastic material is sprayed or coated to form the material layer on the substrate, in order to ensure the fluidity of the thermoplastic material, it is necessary to first heat the thermoplastic material to a corresponding melting temperature, After the thermoplastic material is melted into a liquid, a spraying or coating operation is performed on the thermoplastic material.
[0089] Specifically, when it is detected that the material temperature of the thermoplastic material is greater than the preset melting temperature, the thermoplastic material is in a liquid state, and the thermoplastic m...
Embodiment 3
[0093] Please refer to Figure 4 , in Embodiment 1, the above step S500 includes:
[0094] S510, stretching the stacked material;
[0095] Wherein, after the stacked material is formed by alternately coating the first material layer and the second material layer, the size of different gratings is required more, and the thickness of the stacked material cannot fully meet the requirements of the grating. Due to the size requirements, the stacked material can be stretched to change the thickness of the stacked material, thereby facilitating the preparation of the grating. Specifically, a stretching operation can be performed on the stacked material by a stretching device, the stretching device includes clamping mechanisms arranged oppositely, and the two clamping mechanisms clamp the edges on both sides of the stacked material, and moving in a direction away from each other, thereby driving the stacked material to deform and changing the thickness of the stacked material.
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