Integrated optical device with zero-gap and well-spaced regions
US5082341A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jan 4, 1991 |
| Grant date | Jan 21, 1992 |
| Priority date | — |
| Expiry date | Jan 4, 2011 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/125
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An integrated optical device including a direction coupler between first and second waveguides whereby to transfer light energy between the first and second waveguides, the directional coupler including a first region in which the first and second waveguides converge towards one another while the electromagnetic field regions associated with the waveguides interact, and a second region in which the first and second waveguides are merged into a single waveguide structure having at least twice the width of the first or second waveguide, the first and second regions being dimensioned to control or eliminate the dependence of the directional coupler upon polarization of light in the waveguides.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.