Ring optical transmission network access node
US7672588B2 · kind B2 · utility
0Cited by
1References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 20, 2006 |
| Grant date | Mar 2, 2010 |
| Priority date | — |
| Expiry date | Jun 9, 2028 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04J14/0291
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A ring optical transmission network access node (ANi) comprises: Such nodes enable the implementation of a passive ring network comprising only one fiber and in which the coupling ratios of the couplers (CW, CP) are optimized for two opposite traffic propagation directions.Application in particular to optical fiber metropolitan access networks, with broken fiber protection device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.