Layered switch architectures for high-capacity optical transport networks
US5878177A · kind A · utility
55Cited by
3References
23Claims
0Family size
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Key dates
| Filing date | Aug 21, 1997 |
| Grant date | Mar 2, 1999 |
| Priority date | — |
| Expiry date | Aug 21, 2017 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04Q11/0001
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A layered optical cross-connect switches signals from a first set of optical fibers to a second set of optical fibers. The optical cross-connect comprises at least two switching layers. The input ports and the output ports of each switching layer are fully interconnected. At least one switching layer is configured to switch at least two signals from the same optical fiber from the first set of optical fibers to the second set of optical fibers. For example, in a wavelength-division multiplex (WDM) system, a switching layer can switch signals from different WDM channels having different wavelengths.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.