发明授权
- 专利标题： Optical fiber of the graded index type and method of producing same
- 专利标题（中）： 分级指数型光纤及其制造方法
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申请号： US387993申请日： 1982-06-14
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公开(公告)号： US4439008A公开(公告)日： 1984-03-27
- 发明人: Hendrik J. M. Joormann , Gijsbertus A. C. M. Spierings
- 申请人： Hendrik J. M. Joormann , Gijsbertus A. C. M. Spierings
- 申请人地址： NY New York
- 专利权人： U.S. Philips Corporation
- 当前专利权人： U.S. Philips Corporation
- 当前专利权人地址： NY New York
- 优先权： NLX8103089 19810626
- 主分类号： C03C3/078
- IPC分类号： C03C3/078 ; C03B37/023 ; C03C13/04 ; G02B6/00 ; G02B6/028 ; C03C3/04 ; C03C3/10 ; C03C13/00 ; G02B5/14
摘要：
An optical fiber of the graded index type consisting of a glass having predominantly the composition 60-70 mole % SiO.sub.2, 15-30 mole % alkali metal oxides, and 10 to 15 mole % MgO in combination with at least one oxide selected from the group formed by CaO, SrO, BaO and ZnO. The impurity content of the fiber is less than 0.01 ppm. In the fiber the MgO content increases from the axis of the fiber to the circumference of the fiber. The oxide or the other oxides, having cations which can be exchanged for the magnesium cation, decrease to a corresponding extent in this direction.
公开/授权文献
- US5033165A Apparatus for opening and cleaning fiber material 公开/授权日：1991-07-23
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