Wavelength division multiplexing/demultiplexing devices employing patterned optical components
US6415073B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 10, 2000 |
| Grant date | Jul 2, 2002 |
| Priority date | — |
| Expiry date | Apr 10, 2020 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/2938
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Improved wavelength division multiplexing/demultiplexing devices are disclosed. In the case of an improved wavelength division multiplexing device having a diffraction grating for combining a plurality of monochromatic optical beams into a multiplexed, polychromatic optical beam, the improvement comprises employing a plurality of patterned optical input components corresponding to the plurality of monochromatic optical beams, wherein each of the plurality of patterned optical input components introduces a first patterned phase delay into a corresponding one of the plurality of monochromatic optical. beams. The improvement also comprises employing a patterned optical output component for introducing a second patterned phase delay into the multiplexed, polychromatic optical beam, wherein the first patterned phase delay and the second patterned phase delay are added so as to reshape the passband of the improved wavelength division multiplexing device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.