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Preparation device and method of crystal optical fibers

A technology of crystal fiber and preparation device, applied in cladding fiber, crystal growth, chemical instruments and methods, etc., can solve the problems of poor quality of crystal fiber, large temperature change, etc., to reduce the occurrence of cracks, improve the quality, and select unique materials Effect

Inactive Publication Date: 2020-02-11
SHANDONG UNIV
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  • Abstract
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  • Application Information

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Problems solved by technology

[0006] In order to solve the problem of excessive temperature changes in the optical fiber preparation process in the prior art, which leads to the deterioration of the quality of the crystal optical fiber, the present invention provides a new type of preparation device for the crystal optical fiber

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  • Preparation device and method of crystal optical fibers
  • Preparation device and method of crystal optical fibers
  • Preparation device and method of crystal optical fibers

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Embodiment Construction

[0037] In order to facilitate the understanding of the present invention, the present invention will be described in more detail below in conjunction with the accompanying drawings and specific embodiments. Preferred embodiments of the invention are shown in the accompanying drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described in this specification. On the contrary, these embodiments are provided to make the understanding of the disclosure of the present invention more thorough and comprehensive.

[0038] The preparation device of the crystal optical fiber of the embodiment of the present invention, the overall structure is as follows figure 1 As shown, it mainly includes: CO with a wavelength of 10.6 μm 2 Laser 1, with CO 2 Laser collinear He-Ne laser 2, beam expander 3, beam splitter 4, ring mirror 5, parabolic mirror 12, pulling device 13, rod feeding device 6, holding furnace 9.

[0039] CO ...

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Abstract

The invention belongs to the technical field of optical fiber preparation, and particularly relates to a preparation device and method of crystal optical fibers. The preparation device of the crystaloptical fibers is characterized by comprising a heat-preservation furnace, a heating light source assembly, a rod feeding device and a lifting device, wherein a graphite piece is arranged in a furnacebody, the heating light source assembly comprises a CO2 laser device and a parabolic mirror, the rod feeding device is used for fixing crystal prefabricated rods and feeding rod bodies into the furnace, the lifting device is used for lifting and pulling crystals, a support is arranged in the heat-preservation furnace, the parabolic mirror is mounted at the top of the support, and light beams of the CO2 laser device form a heating source in an internal thermal field of the graphite piece through convergence of the parabolic mirror. According to the preparation device and method of the crystaloptical fibers, the heat-preservation furnace is combined with an LHPG technology, the LHPG technology provides the heating source, the heat-preservation furnace provides the reasonable thermal fieldto accurately control the temperature of the preparation environment of the crystal optical fibers, the advantages of the heat-preservation furnace and the LHPG technology are exerted, thus the crystal optical fibers can be crystallized better and release stress step by step in the preparation process, and the purpose of preparing the high-quality crystal optical fibers is achieved.

Description

technical field [0001] The invention belongs to the technical field of optical fiber preparation, in particular to a preparation device and method for crystal optical fiber. Background technique [0002] Crystal fiber is a new type of high-performance fiber material, which is different from traditional silica fiber. Crystal fiber uses crystals (such as sapphire, YAG) as the core material and has a waveguide structure similar to silica fiber. Compared with traditional silica fibers, crystal fibers have the advantages of high doping concentration of rare earth ions, high damage threshold, small stimulated Brillouin scattering coefficient, high tensile strength, good thermal performance, and corrosion resistance. Therefore, they can be widely used It is used in the fields of high-power fiber laser, high temperature, strong acid, strong alkali and other harsh environment sensing. [0003] Laser heated pedestal method (LHPG) is a commonly used technique for fabricating crystal f...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C30B29/28C30B15/00C30B15/26G02B6/02
CPCC30B15/00C30B15/26C30B29/28G02B6/02
Inventor 刘兆军蒋明渊丛振华谢永耀邵贤彬高悉宝张行愚
Owner SHANDONG UNIV
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