发明名称 |
MCVD method of making a low OH fiber preform with a hydrogen-free heat source |
摘要 |
A method for making a glass preform substantially free of OH impurities is disclosed. The method comprises the steps of introducing a moving stream of a vapor mixture including at least one compound glass-forming precursor together with an oxidizing medium into a tube, while generating a hydrogen-free isothermal plasma on an outer surface of the tube to react the mixture and produce a glassy deposit on an inner surface of the tube. The method uses a plasma torch or a radio frequency furnace.
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申请公布号 |
US5397372(A) |
申请公布日期 |
1995.03.14 |
申请号 |
US19930159179 |
申请日期 |
1993.11.30 |
申请人 |
AT&T CORP. |
发明人 |
PARTUS, FRED P.;THOMAS, GORDON A. |
分类号 |
G02B6/00;C03B37/018;(IPC1-7):C03B37/018 |
主分类号 |
G02B6/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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