Compensation of optical transmission impairments using digital backward propagation
US8447191B2 · kind B2 · utility
6Cited by
2References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 22, 2010 |
| Grant date | May 21, 2013 |
| Priority date | — |
| Expiry date | May 8, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04J14/002
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
Systems and method of compensating for transmission impairment are disclosed. One such method comprises receiving a wavelength-division multiplexed optical signal. The received optical signal has been distorted in the physical domain by an optical transmission channel. The method further comprises propagating the distorted optical signal backward in the electronic domain in a corresponding virtual optical transmission channel. The backward propagation fully compensates for fiber dispersion, self-phase modulation, and cross-phase modulation (XPM) and partially compensates for four-wave mixing (FWM).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.