Optical waveguide device and optical modulator
US7450811B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Oct 27, 2006 |
| Grant date | Nov 11, 2008 |
| Priority date | — |
| Expiry date | Oct 27, 2026 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F2203/07
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
In an optical waveguide device according to the present invention, a multi-layer cladding which is formed by laminating one or more high refractive index layers having the refractive index higher than that of a core and one or more low refractive index layers having the refractive index lower than that of the core, is disposed on a substrate on which an optical waveguide is formed, and utilizing the structural birefringence of this multi-layer cladding, the polarization-dependence of the optical waveguide is increased. As a result, it becomes possible to provide the optical waveguide device having a simple optical waveguide structure for selectively attenuating one of polarization modes of a propagated light.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.