Electro-optic ceramic material and device
US6890874B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | May 6, 2002 |
| Grant date | May 10, 2005 |
| Priority date | — |
| Expiry date | Aug 12, 2022 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/055
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
The present invention provides an electro-optic ceramic material including lead, magnesium, niobium and titanium having a propagation loss of less than about 3 dB/cm and a quadratic electro-optic coefficient of greater than about 2×10−16 m2/V2 at 20° C. at a wavelength of 1550 nm. The present invention also provides electro-optic devices including an electro-optic ceramic material including lead, magnesium, niobium and titanium having a propagation loss of less than about 3 dB/cm and a quadratic electro-optic coefficient of greater than about 2×10−16 m2/V2 at 20° C. at a wavelength of 1550 nm. The materials and devices of the present invention are useful in optical communications applications such as intensity and phase modulation, switching, and polarization control.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.