发明名称 |
Optical waveguide structure |
摘要 |
An optical waveguide structure has a single port on one input/output side, a plurality of ports on another input/output side and an S-curve optical waveguide portion arranged on the outermost side of the waveguide structure and including a first circular arc optical waveguide portion and a second circular arc optical waveguide portion connected thereto. The waveguide portion also has a third circular arc optical waveguide portion extending from a first splitting/coupling point side in the first circular arc waveguide portion toward the plural/ports side and having a curvature inverted relative to the first circular arc optical waveguide portion. At the first splitting/coupling point, a tangential line of the first circular arc optical waveguide portion and a tangential line of the third circular arc optical waveguide portion are parallel to and spaced from each other.
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申请公布号 |
US7457498(B2) |
申请公布日期 |
2008.11.25 |
申请号 |
US20060546253 |
申请日期 |
2006.10.12 |
申请人 |
HITACHI CHEMICAL COMPANY, LTD. |
发明人 |
MIYADERA NOBUO;YAMAMOTO REI |
分类号 |
G02B6/26;G02B6/12;G02B6/122;G02B6/125;G02B6/28 |
主分类号 |
G02B6/26 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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