发明申请
US20120033923A1 HOLEY SINGLE-MODE OPTICAL FIBER AND OPTICAL TRANSMISSION SYSTEM USING SAME
审中-公开
基本信息:
- 专利标题： HOLEY SINGLE-MODE OPTICAL FIBER AND OPTICAL TRANSMISSION SYSTEM USING SAME
- 专利标题（中）：HOLEY单模光纤和光传输系统
- 申请号：US13273813 申请日：2011-10-14
- 公开(公告)号：US20120033923A1 公开(公告)日：2012-02-09
- 发明人： Katsuhiro TAKENAGA , Shoji TANIGAWA , Kazuhide NAKAJIMA , Tomoya SHIMIZU , Chisato FUKAI
- 申请人： Katsuhiro TAKENAGA , Shoji TANIGAWA , Kazuhide NAKAJIMA , Tomoya SHIMIZU , Chisato FUKAI
- 申请人地址： JP Tokyo JP Tokyo
- 专利权人： NIPPON TELEGRAPH AND TELEPHONE CORPORATION,FUJIKURA LTD.
- 当前专利权人： NIPPON TELEGRAPH AND TELEPHONE CORPORATION,FUJIKURA LTD.
- 当前专利权人地址： JP Tokyo JP Tokyo
- 优先权： JP2009-103224 20090421
- 主分类号： G02B6/032
- IPC分类号： G02B6/032
摘要：
Provided is a holey single-mode optical fiber including a core not having holes, and a clad having holes extending in a longitudinal direction, in which a refraction index of the core is larger than that of a portion of the clad other than the holes, a radius r1 of the core is within a range of 2.2 to 3.2 μm, a relative refraction index difference Δ of the core to the clad is within a range of 0.3 to 0.56%, a distance Rin between a center of the core and an inner edge of the holes is 2.0 to 3.5 times the radius r1 of the core, an air-filling fraction F is within a range of 30 to 50%, a cable cut-off wavelength is 1.0 μm or less, a zero-dispersion wavelength is within a range of 1260 to 1460 nm, and a bending loss characteristic at a bending radius of 10 mm is 10 dB/m or less.
摘要（中）：
本发明提供一种具有不具有孔的芯的多孔单模光纤和具有沿纵向延伸的孔的包层，其中芯的折射率大于除了孔以外的包层部分的折射率， 芯的半径r1在2.2〜3.2μm的范围内，相对折射率差Dgr; 芯的内径在0.3〜0.56％的范围内，芯的中心与孔的内缘的距离Rin为芯的半径r1的2.0〜3.5倍，充气率F 在30〜50％的范围内，电缆截止波长为1.0μm以下，零色散波长在1260〜1460nm的范围内，弯曲半径为10mm的弯曲损耗特性为 10 dB / m以下。
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 |
| ----------G02B6/032 | ..具有非实体芯或包层的 |