Arrayed waveguide grating optical multiplexer/demultiplexer and method for manufacturing the same
US6768832B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 21, 2002 |
| Grant date | Jul 27, 2004 |
| Priority date | — |
| Expiry date | Oct 17, 2022 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B2006/12038
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An arrayed waveguide grating optical multiplexer/demultiplexer includes an arrayed waveguide having a plurality of channel waveguides which includes a shortest channel waveguide having a shortest length. Each channel waveguide includes a curved portion provided between first and second connection portions. The shortest channel waveguide has a radius (R1) of curvature of the curved portion and an angle (&thgr;1) which is a half of a central angle of the curved portion. The radius (R1) of curvature and the angle (&thgr;1) are determined such that a product (R1×&thgr;1) is a value within a range which includes a minimum value of the product (R1×&thgr;1) and in which all of the plurality of channel waveguides are drawn.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.