FIELD: chemistry.
SUBSTANCE: invention relates to the modified method of chemical vapour deposition of manufacturing lightguides with small optical losses. The MCVD method of manufacturing single-mode fibre lightguides with the core of pure glass and a shell alloyed with fluorine is blowing the inner channel of the tube in the process of its high temperature compression with a dry inert gas, argon, or nitrogen, and containing not more than 1% of vapours of silicon tetrachloride.
EFFECT: reducing the absorption of OH groups in fibre lightguides with a core from quartz glass and a fluorosilicate shell.
2 cl, 2 dwg
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