| 发明名称 | Optical waveguide | ||
| 摘要 | There are provided an optical waveguide including: a substrate 1; a lower clad layer 2; a core pattern 3 with a taper in thickness direction; and an upper clad layer 4, the lower clad layer, the core pattern, and the upper clad layer being sequentially laminated on the substrate 1, in which the lower clad layer 2 has a cutting part 5. There also provided with an optical waveguide including: a substrate 1; a lower clad layer 2; a core pattern 3 with a taper in thickness direction; and an upper clad layer 4, the lower clad layer, the core pattern, and the upper clad layer being sequentially laminated on the substrate 1, in which the lower clad layer 2 has a dummy part on the top. These optical waveguides can secure alignment tolerance when connected with an optical element. | ||
| 申请公布号 | US8891921(B2) | 申请公布日期 | 2014.11.18 |
| 申请号 | US201113988532 | 申请日期 | 2011.11.22 |
| 申请人 | Hitachi Chemical Company, Ltd. | 发明人 | Sakai Daichi;Kuroda Toshihiro;Aoki Hiromichi |
| 分类号 | G02B6/42;G02B6/036;G02B6/122 | 主分类号 | G02B6/42 |
| 代理机构 | Antonelli, Terry & Kraus, LLP. | 代理人 | Antonelli, Terry & Kraus, LLP. |
| 主权项 | 1. An optical waveguide comprising: a substrate; a lower clad layer; a core pattern with a taper in thickness direction; and an upper clad layer, the lower clad layer, the core pattern, and the upper clad layer being sequentially laminated on the substrate, wherein the optical waveguide further includes a cutting part formed by removing a part of the lower clad layer from one principal plane thereof, said one principal plane being the plane thereof closest to the core pattern, to the other principal plane of the lower clad layer, opposite to said one principal plane, and wherein the upper clad layer extends so as to overlie the lower clad layer, the core pattern and the cutting part. | ||
| 地址 | Tokyo JP | ||