Poled waveguide structure with stabilized internal electric field
US6839495B1 · kind B1 · utility
0Cited by
6References
28Claims
0Family size
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Key dates
| Filing date | Oct 25, 2000 |
| Grant date | Jan 4, 2005 |
| Priority date | — |
| Expiry date | Oct 25, 2020 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F2202/07
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An optical waveguide (11) includes a region (22) which, after electrical poling of a guiding region (16), maintains an internal electric field induced by the poling potential. The internal electric field may arise from charge separation between regions (18, 20) induced by an adjacent poling electrode (12A), and region (22) acts to inhibit decay of the space charge and to increase the lifetime of the induced electro-optic effect. The waveguide may comprise a twin hole optical fiber (11) with internal electrodes (12A, 14A), where the region (22) comprises a borosilicate layer concentrically disposed about one of the electrodes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.