Optical waveguide devices and harmonic wave generating devices
US8542434B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 29, 2011 |
| Grant date | Sep 24, 2013 |
| Priority date | — |
| Expiry date | Dec 3, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/3775
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An optical waveguide device includes a ferroelectric layer having a thickness of 4 μm-7 μm; a supporting body; and an adhesive layer adhering a bottom face of the ferroelectric layer and supporting body. The ferroelectric layer includes a ridge comprising a channel optical waveguide, first and second protuberances on opposite sides of the ridge, inner grooves between the ridge and protuberances, respectively, and outer grooves outside of the protuberances, respectively. The outer groove is deeper than the inner groove. The ridge portion has a width of 6.6 μm-8.5 μm, a distance of an outer edge of the first protuberance and an outer edge of the second protuberance is 8.6 μm-20 μm, the inner groove has a depth of 2.0 μm-2.9 μm, and the outer groove has a depth of 2.5 μm-3.5 μm.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.