| 发明名称 |
Glaskörper für optische Faser, Verwendung davon, optische Faser und Verfahren zu deren Herstellung |
| 摘要 |
<p>A glass body for optical fiber containing GeO2-SiO2 glass in a core portion thereof, in which the GeO2-SiO2 glass has an absorbance at 5.16 eV of at least 1/mm but not higher than 2.5/mm or in which concentration of Ge<2+> contained in the GeO2-SiO2 glass substantially lies within the range of 1.1 x 10<-9> to 2.8 x 10<-9> mol/mm<3> as calculated by the following general equation: <MATH> wherein A is absorbance which is expressed by A = -log T (T being transmittance) and normalized per 1 mm of optical path length, C(Ge2+) is Ge<2+> concentration, epsilon 5.16ev is absorption coefficient (l/mol/cm), and l is optical path length. This invention is also directed to the use of such a glass body, an optical fiber and a method of preparing it. <IMAGE></p> |
| 申请公布号 |
DE69603441(D1) |
申请公布日期 |
1999.09.02 |
| 申请号 |
DE1996603441 |
申请日期 |
1996.10.22 |
| 申请人 |
SUMITOMO ELECTRIC INDUSTRIES |
发明人 |
OHGA, YUICHI;ISHIKAWA, SHINJI;ENOMOTO, TADASHI |
| 分类号 |
G02B6/00;C03B37/027;C03C3/06;C03C13/04;G02B6/02;(IPC1-7):C03C13/04 |
主分类号 |
G02B6/00 |
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