Method and device for depositing glass layers on the external surface of a rod-like glass preform
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United States of America Patent
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Issued Date -
Dec 2, 2004
app pub date -
Mar 11, 2004
filing date -
Oct 1, 2001
priority date (Note) -
Abandoned
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Abstract
A method for depositing one or more glass layers on the external surface of a rod-like glass preform. The method: i) places the preform in an enclosed space, ii) creates a sub-atmospheric pressure in the enclosed space, iii) supplies one or more reactive gases, which may or may not be doped, to the enclosed space, iv) generates a plasma zone in the enclosed space, and v) carries out a deposition reaction.
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