Optically functional device
US7389030B2 · kind B2 · utility
5Cited by
3References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 5, 2007 |
| Grant date | Jun 17, 2008 |
| Priority date | — |
| Expiry date | Feb 5, 2027 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/0508
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An optical functional device comprises a dielectric substrate 5, a ferroelectric thin layer 10 provided on the dielectric substrate 5 and comprising a material having electro-optical effect and an electrode 3A, 3B provided on the ferroelectric thin layer 10. A part of the ferroelectric thin layer 10 functions as a core 9 of the optical wave guide and the dielectric substrate functions as a clad for the optical waveguide. The optical waveguide 9 constitutes a multi-mode waveguide in the direction “D” of depth of the ferroelectric thin layer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.