发明名称 |
Efficient silicon-on-insulator grating coupler |
摘要 |
An efficient grating coupler for a semiconductor optical mode includes a tapered edge to couple light between waveguide modes constrained by differing waveguide thicknesses. An optical circuit or laser has a waveguide in a rib or strip waveguide section that is of different height (e.g., having different vertical constraints) than a waveguide section that has a grating coupler through which light passes off-circuit. The tapered edge can couple light between the two waveguide sections with very low loss and back-reflection. The low loss and minimal back-reflection enables testing of the photonics circuit on a wafer level, and improved performance through the grating coupler. |
申请公布号 |
US8625942(B2) |
申请公布日期 |
2014.01.07 |
申请号 |
US201113075949 |
申请日期 |
2011.03.30 |
申请人 |
NA YUN-CHUNG N.;RONG HAISHENG;INTEL CORPORATION |
发明人 |
NA YUN-CHUNG N.;RONG HAISHENG |
分类号 |
G02B6/34;G02B6/26;G02B6/42 |
主分类号 |
G02B6/34 |
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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