发明名称 |
Method and apparatus for fabricating optical fiber preform using double torch in mcvd |
摘要 |
Disclosed is a method for fabricating an optical fiber preform using a double torch in MCVD, which includes a first process of heating a quartz tube (10) at a temperature lower than a sintering temperature by using a first torch (21) with putting reaction gas, oxygen gas and dehydration gas into the tube so that soot particles are generated and deposited, and heating the tube to a predetermined temperature by using a second torch (22) spaced apart from the first torch after the first torch (21) passes so that moisture in the soot particles is removed; and a second process of conducting dehydration for removing moisture in the soot particles by use of the first torch (21) again, and heating the tube above a sintering temperature by using the second torch (22) so that the soot particles free from moisture are vitrified.
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申请公布号 |
US2005000252(A1) |
申请公布日期 |
2005.01.06 |
申请号 |
US20040497093 |
申请日期 |
2004.05.28 |
申请人 |
LEE CHAN-JOO;SON SOO-IL;PARK JI-SANG |
发明人 |
LEE CHAN-JOO;SON SOO-IL;PARK JI-SANG |
分类号 |
C03B37/018;(IPC1-7):C03B37/018 |
主分类号 |
C03B37/018 |
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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