FIELD: fibre optics.
SUBSTANCE: method for manufacturing blanks for light guides relates to fibre optics, in particular to the technology of manufacturing light guides from quartz glass. The method involves deposition of a porous layer of silicon dioxide on the workpiece when it is heated by a moving burner consuming natural gas - propane and air, which is pre-saturated with organosilicon vapour. The resulting porous shell is impregnated with a saturated aqueous solution of boron oxide and dried in an air atmosphere at the ambient temperature.
EFFECT: increased strength of quartz fibre drawn at low heating temperatures of the workpiece.
1 cl, 1 ex, 2 dwg
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