Wavelength converter structure and method for preparing the same
US7394588B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 22, 2006 |
| Grant date | Jul 1, 2008 |
| Priority date | — |
| Expiry date | Aug 22, 2026 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/3775
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A wavelength converter structure according to one aspect of the present invention comprises a ferroelectric substrate, a ridge positioned on the ferroelectric substrate, a plurality of first domains positioned in the ridge and a plurality of second domains interleaved between the first domains in the ridge. The first domains have a first polarization direction and the second domains have a second polarization direction opposite to the first polarization direction. The refraction index of the ferroelectric substrate is different from the refraction index of the ridge. The ridge may include a rectangular portion, a taper portion, or a taper portion and a rectangular portion connected to the taper portion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.