Adding and dropping wavelength-channels
US7200299B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Mar 23, 2006 |
| Grant date | Apr 3, 2007 |
| Priority date | — |
| Expiry date | Mar 23, 2026 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04J14/0282
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
In a first aspect, an apparatus includes a substrate having a planar surface, an optical demultiplexer located along the surface, and an optical cross-connect matrix located along the surface. The optical demultiplexer has N optical outputs. The optical cross-connect matrix has a first array of N optical input ports and a second array of N optical output ports. Each optical input port of the optical cross-connect matrix is optically connected to a corresponding one of the optical outputs of the optical demultiplexer. The output ports have a sequential ordering in the second array that is a nontrivial permutation of a sequential ordering of the corresponding input ports in the first array.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.