Controllable electro-optic device having substrate trenches between electrodes
US7171063B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 1, 2004 |
| Grant date | Jan 30, 2007 |
| Priority date | — |
| Expiry date | Sep 6, 2025 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/225
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An optical modulator which has substantially low loss and has an improvement in voltage reduction is disclosed having an electro-optic lithium niobate substrate. The substrate has first, second and third ridges extending along its surface. Extending along the first and second ridges are first and second waveguides. A first RF electrode extends over the first waveguide and a second slotted electrode including a first section extends over the second waveguide. A second section of the slotted extends parallel to and adjacent to the first section on the third ridge. In summary, this invention provides a slotted ground electrode wherein a slot is formed in the substrate between the slotted electrode.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.