Electro-optic device with an optical grating coupler having a grating period variation and methods of formation thereof
US9933576B2 · kind B2 · utility
1Cited by
9References
24Claims
0Family size
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Key dates
| Filing date | Dec 29, 2015 |
| Grant date | Apr 3, 2018 |
| Priority date | — |
| Expiry date | Dec 29, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B2006/12061
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An electro-optic device may include a photonic chip including an insulator layer, and a semiconductor layer over the insulator layer and defining an optical grating coupler. The optical grating coupler may have a series of alternating curved ridges and valleys. The optical grating coupler has first and second sides and a medial portion. The medial portion has a medial grating period T based upon a targeting wavelength. One or more of the first and second sides have a side grating period different than T.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.