| 申请日期 | 2025-07-08 | 申请号 | EP05722408 |
| 公开（公告）号 | EP1708971B1 | 公开（公告）日 | 2015-06-10 |
| 公开国别 | EP | 申请人省市代码 | 全国 |
| 申请人 | Corning Incorporated | ||
| 简介 | An optical fiber comprising : (i) a silica based, rare earth doped core having a first index of refraction n1; (ii) a silica based inner cladding surrounding the core having a second index of refraction n2, such that n1>n2; (iii) a silica based outer cladding surrounding the inner cladding having a third index of refraction n3 such that n2>n3, wherein inner cladding diameter is at least 125 mum. | ||
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