
基本信息:
- 专利标题: 低损耗少模光纤
- 申请号:CN201510217081.5 申请日:2015-04-29
- 公开(公告)号:CN104793285B 公开(公告)日:2018-01-02
- 发明人: 莫琦 , 喻煌 , 陈文 , 杜城 , 余志强 , 王冬香 , 蔡冰峰
- 申请人: 武汉邮电科学研究院 , 烽火通信科技股份有限公司
- 申请人地址: 湖北省武汉市洪山区邮科院路88号
- 专利权人: 武汉邮电科学研究院,烽火通信科技股份有限公司
- 当前专利权人: 武汉邮电科学研究院,烽火通信科技股份有限公司
- 当前专利权人地址: 湖北省武汉市洪山区邮科院路88号
- 代理机构: 北京捷诚信通专利事务所
- 代理人: 王卫东
- 主分类号: G02B6/028
- IPC分类号: G02B6/028 ; G02B6/036
A low-loss few-mode fiber relates to the technical field of optical communications and related sensing devices, and includes, from inside to outside, a core layer (1), a fluorine-doped quartz inner cladding (2), a fluorine-doped quartz second core layer (3), a fluorine-doped quartz depressed cladding (4) and a fluorine-doped quartz outer cladding (5); germanium element is not doped within the core layer (1), the refractive index of the core layer (1) is in gradient distribution, and the distribution is a power-exponent distribution; the maximum value of difference in relative refractive index between the core layer (1) and the fluorine-doped quartz inner cladding (2) is 0.3% to 0.9%; the relative refractive index difference of the fluorine-doped quartz inner cladding (2) with respect to synthetic quartz is -0.3% to -0.5%; the difference in relative refractive index between the fluorine-doped quartz second core layer (3) and the fluorine-doped quartz inner cladding (2) is 0.05% to 0.2%; the difference in relative refractive index between the fluorine-doped quartz depressed cladding (4) and the fluorine-doped quartz inner cladding (2) is -0.1% to -0.5%; the relative refractive index difference of the fluorine-doped quartz outer cladding (5) with respect to synthetic quartz is -0.3% to -0.5%. The transmission loss of optical signals of the linear polarization modes that are supported by the few-mode fiber and the relay cost are reduced.
公开/授权文献:
- CN104793285A 低损耗少模光纤 公开/授权日:2015-07-22
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 |
----------G02B6/028 | ..具有渐变折射率的芯或包层 |