发明名称 |
MANUFACTURE OF SOLID PREFORM FOR OPTICAL FIBER |
摘要 |
While collapsing the central duct in hollow glass optical fiber preforms, an etchant consisting of a mixture of oxygen and a fluorocarbon compound from the group C2F6, C3F8 and N-C4F10 is passed through the duct. In particular, the etchant is passed through the duct only when the duct's diameter is 1 mm or smaller. The resulting solid preforms and optical fibers drawn therefrom do not have a central dip in the refractive index profile. |
申请公布号 |
JPS59156932(A) |
申请公布日期 |
1984.09.06 |
申请号 |
JP19840029664 |
申请日期 |
1984.02.21 |
申请人 |
PHILIPS' GLOEILAMPENFABRIEKEN NV |
发明人 |
RENE ANDOREASU MARIA PURUEIMUSU;PIETERU FUAN DERU REE;HERITSUTO YAN KOERE;YAN HERARUDO YAKOBU PEEREN |
分类号 |
C03B8/00;C03B20/00;C03B37/018;C03C15/00;G02B6/00 |
主分类号 |
C03B8/00 |
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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