Optical waveguide structure including at least first, second and third waveguides and coupling waveguide
US7664353B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 13, 2004 |
| Grant date | Feb 16, 2010 |
| Priority date | — |
| Expiry date | May 13, 2024 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/125
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
The present invention disclosed is an optical waveguide structure that has a first waveguide provided with the opposite ends A and B, a second waveguide with the opposite ends C and D, a third waveguide with the opposite ends E and F, and a coupling waveguide having its first beam incoming/outgoing end connected to the end B of the first waveguide and its second beam incoming/outgoing end connected to the end C of the second waveguide and the end E of the third waveguide. The optical waveguide is characterized in that the first waveguide and the coupling waveguide are longitudinally dimensioned so that light beam at its peak of light intensity can transit the point of axial mal-alignment at the end A of the first waveguide and further transit the axial zone at the second beam incoming/outgoing end of the coupling waveguide.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.