![Optical fibre with alkali doped core and optical fiber preform](/ep/2018/01/10/EP2511741A3/abs.jpg.150x150.jpg)
基本信息:
- 专利标题: Optical fibre with alkali doped core and optical fiber preform
- 专利标题(中):带有碱掺杂芯和光纤预制棒的光纤
- 申请号:EP12163886.0 申请日:2012-04-12
- 公开(公告)号:EP2511741A3 公开(公告)日:2018-01-10
- 发明人: Hirano, Masaaki , Haruna, Tetsuya , Tamura, Yoshiaki
- 申请人: Sumitomo Electric Industries, Ltd.
- 申请人地址: 5-33, Kitahama 4-chome Chuo-ku Osaka-shi, Osaka 541-0041 JP
- 专利权人: Sumitomo Electric Industries, Ltd.
- 当前专利权人: Sumitomo Electric Industries, Ltd.
- 当前专利权人地址: 5-33, Kitahama 4-chome Chuo-ku Osaka-shi, Osaka 541-0041 JP
- 代理机构: Hoffmann Eitle
- 优先权: JP2011091250 20110415
- 主分类号: G02B6/02
- IPC分类号: G02B6/02 ; G02B6/036 ; C03C13/04 ; C03B37/012 ; C03B37/014 ; C03B37/018
摘要:
An optical fiber preform has a core portion having a first core portion including a central axis, a second core portion disposed around the first core portion, and a third core portion disposed around the second core portion. The first core portion contains 10 atomic ppm or more of an alkali metal and 10 to 600 atomic ppm of chlorine, the second core portion contains 10 atomic ppm or less of the alkali metal and 10 to 600 atomic ppm of chlorine, and the third core portion contains 10 atomic ppm or less of the alkali metal and 2,000 atomic ppm or more of chlorine. An optical fiber has a core region doped with an alkali metal and chlorine, wherein the minimum concentration of chlorine in the core region is 1,000 atomic ppm or more, and the average concentration of the alkali metal therein is 0.2 atomic ppm or more.
摘要(中):
光纤预制件具有芯部分,该芯部分具有包括中心轴线的第一芯部分,围绕第一芯部分设置的第二芯部分以及设置在第二芯部分周围的第三芯部分。 第一芯部含有10原子ppm以上的碱金属和10〜600原子ppm的氯,第二芯部含有10原子ppm以下的碱金属和10〜600原子ppm的氯,第三芯 部分含有10原子ppm或更少的碱金属和2000原子ppm或更多的氯。 光纤具有掺杂有碱金属和氯的芯区,其中芯区中氯的最小浓度为1,000原子ppm或更高,并且其中碱金属的平均浓度为0.2原子ppm或更多。
公开/授权文献:
IPC结构图谱:
G | 物理 |
--G02 | 光学 |
----G02B | 光学元件、系统或仪器 |
------G02B6/00 | 光导;包含光导和其他光学元件(如耦合器)的装置的结构零部件 |
--------G02B6/02 | .带有包层的光导纤维 |