Hardened, wavelength enabled optical capacity
US8116631B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 15, 2009 |
| Grant date | Feb 14, 2012 |
| Priority date | — |
| Expiry date | Aug 6, 2030 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04J14/0295
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
Providing bandwidth expansion in existing HFC infrastructures. A break in a fiber ring is established. A temperature hardened demultiplexer is coupled at the break to an input side of the fiber ring. A temperature hardened multiplexer is coupled at the break to an output side of the fiber ring. The temperature hardened demultiplexer is configured to pass-through a first predetermined wavelength to the temperature hardened multiplexer and to drop out a second predetermined wavelength. The second predetermined wavelength is extended from the demultiplexer for providing a first predetermined wavelength to an expansion node. The temperature hardened multiplexer is configured to receive the first predetermined wavelength from the temperature hardened demultiplexer and to receive the second predetermined wavelength from the expansion node.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.