Segmented waveguide structure
US8126300B2 · kind B2 · utility
1Cited by
11References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 17, 2009 |
| Grant date | Feb 28, 2012 |
| Priority date | — |
| Expiry date | Aug 24, 2030 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01S5/0268
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Segmented waveguide structures provide mode matching in planar lightwave circuits between waveguides and other waveguiding structures, e.g. slab waveguides and optical fibers. The present invention eliminates back reflections from the core segments by etching the leading and trailing faces of the core segments with a plurality of parallel facet sections, which are rearwardly offset in the transmission direction by an odd number of quarter wavelengths.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.