Optical transmission network with a switching matrix
US5537239A · kind A · utility
13Cited by
4References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 3, 1994 |
| Grant date | Jul 16, 1996 |
| Priority date | — |
| Expiry date | Jun 3, 2014 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04Q2011/0015
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
The network includes composite switching matrices (M1, M2, M3), each of which is split between a plurality of nodes (N1, N2, N3) of the network. The nodes are connected together via optical fibers (L3A3, L1A4) conveying wavelength multiplexes and included in the matrices. The matrices include emitters having staggered wavelengths (E2A1,1, . . . , E2A2,4), star couplers (C2A1, C2A2), controlled space-division switching matrices (X2A1, . . . , X2A4), and wavelength-controlled filters (F2A1,1, . . . , F2A4,4). The invention applies to telecommunications.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.