Fiber optic dense wavelength division multiplexer utilizing a multi-stage parallel cascade method of wavelength separation
US6263126A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Aug 6, 1998 |
| Grant date | Jul 17, 2001 |
| Priority date | — |
| Expiry date | Aug 6, 2018 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/29386
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An improved dense wavelength division multiplexer for the separation of optical channels is provided. The dense wavelength division multiplexer includes the inputting of an optical signal with the optical signal containing a plurality of optical channels; the separating of one or more of the plurality of optical channels from the optical signal using separators at least partly arranged in a multi-stage parallel cascade configuration; and the outputting of the separated plurality of channels along a plurality of optical paths. The dense wavelength division multiplexer of the present invention provides for a lower insertion loss by requiring an optical signal to travel through fewer optical components in the separation process.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.