发明名称 |
Optical fiber |
摘要 |
An optical fiber comprising a core glass and a cladding glass therearound, wherein at least the core glass contains GeO2 as an additive to increase the refractive index with respect to the cladding glass. The fiber glass is prepared by heat treating a starting glass to separate out a B2O3-Na2O-rich phase for subsequent acid leaching, and by sintering a residual glass with low concentrations of light absorbing impurities. Ingredients of the starting glass in weight percent are as follows:
|
申请公布号 |
US4097258(A) |
申请公布日期 |
1978.06.27 |
申请号 |
US19760696657 |
申请日期 |
1976.06.16 |
申请人 |
HOYA GLASS WORKS, LTD. |
发明人 |
HORIKAWA, SUSUMU;NAKAGAWA, KENJI;NOGAMI, YOSHITO |
分类号 |
C03C13/04;C03C15/00;C03C23/00;(IPC1-7):C03C13/00 |
主分类号 |
C03C13/04 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|