FIELD: optics.
SUBSTANCE: group of inventions relates to a method of producing a doped workpiece of an optical fibre doped with an optical fibre workpiece. Method of efficiently producing a doped workpiece of an optical fibre involves the following steps: mixing rare-earth material or functional metal material with a salt-forming agent, adding a solvent for preparing an alloying solution, uniformly mixing high-purity quartz powder with a dopant solution to obtain a doped precursor; drying of the doped precursor, milling of the doped precursor and sifting of the milled precursor through the screen for production of doped quartz powder; placing the inoculating rod in the plasma sputtering device, introducing the doped quartz powder, oxygen and/or other gaseous salt-forming substances into the plasma heating zone in the plasma spraying device and depositing the doped quartz powder on the surface of the inoculating rod to form a doped core layer; termination of doped quartz powder introduction, introduction of high-purity quartz powder, oxygen and/or other gaseous salt-forming substances; depositing high-purity quartz powder on the surface of the doped core layer to form a quartz outer shell; removal of inoculating rod and gradual collapse of mould formed of doped core layer and quartz outer shell at high temperature to produce doped optical fibre workpiece. Gaseous salt-forming substances include hexafluoroethane or phosphorus oxychloride.
EFFECT: technical result is reduced introduction of impurities and improved uniformity of doping fibre-optic preforms.
11 cl, 5 dwg, 4 tbl
Title | Year | Author | Number |
---|---|---|---|
BROMINE-DOPED OPTICAL FIBER | 2016 |
|
RU2736023C2 |
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|
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METHOD OF ALLOYING AND ALLOYED MATERIAL | 2005 |
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RU2370464C2 |
FIBRE WITH RARE-EARTH ELEMENT-DOPED CORE AND MULTILAYER CLADDING, FIBRE AMPLFIER AND FIBRE LASER | 2008 |
|
RU2421855C2 |
QUANTUM MEMORY SYSTEMS AND QUANTUM REPEATER SYSTEMS CONTAINING OPTICAL APPARATUSES MADE OF DOPED POLYCRYSTALLINE CERAMICS AND METHODS OF MANUFACTURE THEREOF | 2017 |
|
RU2744398C2 |
METHOD OF MAKING OPTICAL FIBRE WORKPIECE | 2009 |
|
RU2397151C1 |
Authors
Dates
2020-01-31—Published
2016-10-21—Filed