Low cost amplification in DWDM networks
US6965712B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 29, 2003 |
| Grant date | Nov 15, 2005 |
| Priority date | — |
| Expiry date | Dec 29, 2023 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01S3/1608
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An optical repeater is provided for use in an optical communication network wherein only wavelength ranges having desirable gain characteristics are used for communication. Selectively assigning channels to wavelengths having desirable gain characteristics for a given amplifier permits channels to be more closely spaced in the available frequency spectrum. Such an arrangement reduces the cost of optical communication systems by removing the need for gain flattening filters, while maintaining the ability of the network to support a desired number of communication channels.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.