Optical transmission system
US7039270B2 · kind B2 · utility
9Cited by
4References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 2, 2001 |
| Grant date | May 2, 2006 |
| Priority date | — |
| Expiry date | Aug 2, 2021 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04J14/0224
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A device wavelength division multiplex optical transmission system has the wavelengths of the optical carriers arranged so as to reduce the effect of in-band crosstalk which results from unwanted side bands to the carriers. Possible wavelengths are placed on an equally spaced wavelength grid, and the transmitted channels are organized into groups of three each of which is placed on four adjacent grid positions, one of which is unused. Adjacent groups are spaced apart by two or more vacant grid positions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.