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Preparation method of quartz glass-cladding multi-component glass compound optical fiber

A technology of quartz glass and composite optical fiber, applied in the field of optical fiber, to achieve the effect of improving nonlinear effect, low preparation cost, and simple and practical operation method

Active Publication Date: 2016-06-29
SHANGHAI INST OF OPTICS & FINE MECHANICS CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] At present, there is still no preparation method for inserting multi-component glass fibers into a quartz capillary and forming a composite optical fiber through tapering.

Method used

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  • Preparation method of quartz glass-cladding multi-component glass compound optical fiber

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] will Nd 3+ The doped phosphate N31 glass rod is drawn into a 150-micron fiber by a traditional drawing process, and the phosphate glass fiber is placed in a quartz glass capillary with an inner diameter of 150 microns and an outer diameter of 1.5 mm. Put the quartz glass capillary on the optical fiber fusion splicing / tapering machine, and remelt the multi-component glass in the capillary, so that it can be bonded and fused with the quartz glass tube wall at high temperature. The above bonded and fused quartz glass capillary is further fused and tapered to prepare a quartz glass clad phosphate glass composite optical fiber with a core diameter of 100 microns and an outer diameter of about 1 mm.

Embodiment 2

[0023] will Nd 3+ The doped phosphate N31 glass rod is drawn into a 100-micron fiber by a traditional drawing process, and the phosphate glass fiber is placed in a quartz glass capillary with an inner diameter of 150 microns and an outer diameter of 750 microns. Put the quartz glass capillary on the optical fiber fusion splicing / tapering machine, and remelt the multi-component glass in the capillary, so that it can be bonded and fused with the quartz glass tube wall at high temperature. The above bonded and fused quartz glass capillary is further melted and tapered to prepare a quartz glass clad phosphate glass composite optical fiber with a core diameter of 60 microns and an outer diameter of about 400 microns.

Embodiment 3

[0025] will Nd 3+ The doped phosphate N31 glass rod is drawn into 80 micron fibers by traditional drawing process, and the phosphate glass fiber is placed in a quartz glass capillary with an inner diameter of 100 microns and an outer diameter of 1500 microns. Put the quartz glass capillary on the optical fiber fusion splicing / tapering machine, and remelt the multi-component glass in the capillary, so that it can be bonded and fused with the quartz glass tube wall at high temperature. The above bonded and fused quartz glass capillary is further fused and tapered to prepare a quartz glass clad phosphate glass composite optical fiber with a core diameter of 40 microns and an outer diameter of about 400 microns.

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Abstract

Disclosed is a preparation method of a quartz glass-cladding multi-component glass compound optical fiber. According to the preparation method, quartz glass is used as a cladding layer, multi-component glass (phosphate glass, tellurite glass, germanate glass, silicate glass and the like) serves as a fiber core and is drawn to prepare glass fibers, the glass fibers are inserted into quartz glass capillaries with the inner hole size matched with the same and are drawn into the quartz glass-cladding multi-component glass compound optical fiber by heating and cone drawing on an optical fiber conic clink. The preparation method of the quartz glass-cladding multi-component glass compound optical fiber combines the advantage of high strength of the quartz glass and the advantages of high gain, high nonlinearity and the like, the multi-component glass compound optical fiber unusually high in mechanical strength can be prepared, the shortcoming of poor mechanical performance of traditional multi-component glass optical fibers is overcome, and excellent optical performance of the multi-component glass is kept.

Description

technical field [0001] The invention relates to an optical fiber, in particular to a method for preparing a quartz glass-clad multi-component glass composite optical fiber. technical background [0002] Fiber lasers have the advantages of small size, high beam quality, and easy integration, and have become the main research direction of solid-state lasers. Fiber laser has a wide range of applications in the fields of radar, ranging, remote sensing, medical treatment, spectroscopy, optical frequency standards and nonlinear optical frequency conversion. Compared with traditional silica glass optical fibers, multi-component glass (silicate glass, tellurate glass, germanate glass, phosphate glass, etc.) optical fiber has the advantages of high rare earth ion doping concentration and excellent optical performance. However, its mechanical strength is far inferior to that of silica optical fibers, which greatly limits the practical application of multi-component glass optical fibe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03B37/027
CPCC03B37/02727C03B2203/32
Inventor 李大海于春雷张磊张国栋王孟胡丽丽
Owner SHANGHAI INST OF OPTICS & FINE MECHANICS CHINESE ACAD OF SCI
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