发明名称 |
Manufacturing method of optical fiber preform |
摘要 |
A method for manufacturing an optical fiber preform that can produce an optical fiber having desired characteristics over the longer length thereof. A crude preform provided with a core region and a cladding region is prepared (Step S 1 ), and at a plurality of positions in the longitudinal direction of the crude preform, a refractive index profile in the cross-section of the crude preform is measured (Step S 2 ). Then, the shape of the cladding region is demarcated based on the shape of the profile (Step S 3 ). Subsequently, the crude preform is ground based on the results of the demarcation (Step S 4 ). Thus, an optical fiber preform that enables the manufacture of an optical fiber having target characteristics is manufactured.
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申请公布号 |
US7062941(B2) |
申请公布日期 |
2006.06.20 |
申请号 |
US20020103786 |
申请日期 |
2002.03.25 |
申请人 |
SUMITOMO ELECTRIC INDUSTRIES, LTD. |
发明人 |
ONISHI MASASHI;YANADA EIJI;HIRANO MASAAKI;IJIRI HIDEYUKI |
分类号 |
C03B37/07;G02B6/00;C03B37/012;C03B37/014 |
主分类号 |
C03B37/07 |
代理机构 |
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