Arrayed waveguide grating type optical multiplexer/demultiplexer and optical waveguide circuit
US6728435B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 8, 2002 |
| Grant date | Apr 27, 2004 |
| Priority date | — |
| Expiry date | Feb 8, 2022 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B2006/12195
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An arrayed waveguide grating optical multiplexer/demultiplexer includes an arrayed waveguide connected to at least one first optical waveguide via a first slab waveguide, a plurality of second optical waveguides connected to the arrayed waveguide via a second slab waveguide. At least one multi-mode waveguide has a first end portion and a second end portion having a second width larger than a first width of the first end portion. The first end portion of each of the at least one multi-mode waveguide is connected to each of the at least one first optical waveguide. The second end portion of each of the at least one multi-mode waveguide is connected to the first slab waveguide. A width of the at least one multi-mode waveguide increases from the first end portion toward the second end portion and is configured to realize multi-mode.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.