Dispersion mapping of transmitted channels in a WDM system
US7693365B2 · kind B2 · utility
2Cited by
6References
23Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 4, 2008 |
| Grant date | Apr 6, 2010 |
| Priority date | — |
| Expiry date | Apr 27, 2028 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04J14/0305
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
Chromatic dispersion is determined based on the arrival times of different frames of data in a wavelength division multiplexed (WDM) system having an optical communication link. Namely, a first frame is transmitted on a first optical channel, which is supplied to the optical communication link. A second frame is then transmitted on a second optical channel and the transmission time difference between the two frames is obtained. At a receive end, the difference in arrival times of the two frames is measured to obtain a relative time delay between the first and second frames and used to determine a chromatic dispersion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.