Wavelength division multiplex branching unit and method of operation for optical transmission systems
US6115516A · kind A · utility
21Cited by
1References
30Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 11, 1998 |
| Grant date | Sep 5, 2000 |
| Priority date | — |
| Expiry date | May 11, 2018 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04J14/0209
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A wavelength division multiplex branching unit for an optical fibre transmission network comprises a branching unit housing (100) and means (102) external to the housing for permitting the connection of one or more wavelength selective devices (A, B, C, D) to a trunk transmission fibre. The wavelength selective devices are each responsive to a different transmission wavelength and are effective to direct transmission signals have that response wavelength from the trunk fibre to a spur fibre of the branch cable.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.