| 申请日期 | 2025-06-25 | 申请号 | US12487753 |
| 公开（公告）号 | US20100021114A1 | 公开（公告）日 | 2010-01-28 |
| 公开国别 | US | 申请人省市代码 | 全国 |
| 申请人 | CHEN XIN; KOH JOOHYUN; LI MING JUN | ||
| 简介 | A double-clad optical fiber includes a core, an inner cladding and an outer cladding of silica-based glass. The core may have a radius of less than about 5 μm, a first index of refraction n1 and does not contain any active rare-earth dopants. The inner cladding may surround the core and includes a radial thickness of at least about 25 μm, a numerical aperture of at least about 0.25, and a second index of refraction n2 such that n2 | ||
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