Wavelength division multiplexing/demultiplexing devices having concave diffraction gratings
US6434299B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 27, 2000 |
| Grant date | Aug 13, 2002 |
| Priority date | — |
| Expiry date | Sep 13, 2020 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/29395
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A variety of wavelength division multiplexing/demultiplexing devices are disclosed. In one embodiment, an improved wavelength division multiplexing for receiving a plurality of diverging monochromatic optical beams, for combining the plurality of diverging monochromatic optical beams into a converging multiplexed, polychromatic optical beam, and for transmitting the converging, multiplexed, polychromatic optical beam. The concave diffraction grating can be formed in a variety of ways such as, for example, in a polymer material with a reflective surface. Alternatively, the concave diffraction grating may be etched into a rigid material with a reflective surface.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.