Duplex arrayed waveguide grating
US7440655B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 21, 2005 |
| Grant date | Oct 21, 2008 |
| Priority date | — |
| Expiry date | Sep 21, 2025 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/12016
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An optical device that includes an input region, an output region, and an arrayed waveguide grating between the input region and the output region is presented. The input region includes a first input waveguide set and a second input waveguide set, and the output region includes a first output waveguide set and a second output waveguide set. The arrayed waveguide grating is shared by the signals that travel from the input region to the output region. The device is capable of simultaneously functioning as a multiplexer and a demultiplexer, thereby reducing the cost and complexity of a dual-function optical device. Where the arrayed waveguide grating is used for multiplexing, the optical device receives demultiplexed input signals and generates a multiplexed signal. Where the arrayed waveguide grating is used for demultiplexing, the optical device receives a multiplexed input signal and generates a set of demultiplexed signals.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.