| 发明名称 | Optical fiber and optical transmission line | ||
| 摘要 | An optical fiber, including (i) an inner core having an α-power refractive index profile, (ii) an outer core having a refractive index of n1′, and (iii) a cladding having a refractive index of n2 (n1′<n2<n1), is configured such that a depth of a trench, defined by n2−n1′, is sufficiently increased. | ||
| 申请公布号 | US9297952(B2) | 申请公布日期 | 2016.03.29 |
| 申请号 | US201313948664 | 申请日期 | 2013.07.23 |
| 申请人 | FUJIKURA LTD. | 发明人 | Maruyama Ryo;Kuwaki Nobuo;Matsuo Shoichiro;Ohashi Masaharu |
| 分类号 | G02B6/44;G02B6/028;G02B6/036;G02B6/02 | 主分类号 | G02B6/44 |
| 代理机构 | Westerman, Hattori, Daniels & Adrian, LLP | 代理人 | Westerman, Hattori, Daniels & Adrian, LLP |
| 主权项 | 1. An optical fiber comprising: an inner core having an α-power refractive index profile and a maximum refractive index of n1; an outer core surrounding the inner core, the outer core having a refractive index of n1′; and a cladding surrounding the outer core, the cladding having a refractive index of n2 (n1′<n2<n1), a depth of a trench, defined by (n2−n1′), being set so that (i) a mode dispersion Δτ, defined by Δτ=(1/vg11)−(1/vg01), has a positive sign, where vg01 indicates a group velocity of an LP01 mode and vg11 indicates a group velocity of an LP11 mode and (ii) an inclination dΔτ/dλ of the mode dispersion Δτ has a positive sign. | ||
| 地址 | Tokyo JP | ||