Wavelength converting devices
US7372621B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 13, 2007 |
| Grant date | May 13, 2008 |
| Priority date | — |
| Expiry date | Mar 13, 2027 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F2201/063
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A wavelength converting device 1 has a ferroelectric layer 6 made of a ferroelectric material. The ferroelectric layer has a wavelength converting portion A having a ridge-type optical waveguide 7, additional portions A and B provided in both sides of the wavelength converting portions, respectively, and groove-forming portions C and D between the wavelength converting portion and the additional portions, respectively. The device further has a supporting body 2 adhered to a back face 6f of the ferroelectric layer 6, and back side metal films 5A and 5B covering at least a part of a back face 6f of the additional portions 6, respectively. The back side metal film 5A or 5B does not cover the back face 6f of the wavelength converting portion 6.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.