Patent · US Active

Communication system for a nonlinear fiber channel

US9686013B2 · kind B2 · utility

0Cited by

1References

14Claims

0Family size

Assignee

Telefonaktiebolaget LM Ericsson (Publ) · SE

Inventors

Bengt-Erik Olsson · Mölndal, SE
Arne Alping · Lindome, SE

Key dates

Filing date	Dec 21, 2012
Grant date	Jun 20, 2017
Priority date	—
Expiry date	Dec 21, 2032

Classification

Technology area (CPC H)Electricity
CPC primaryH04B2210/25
WIPO fieldTelecommunications
WIPO sectorElectrical engineering

Abstract

A system for communication over a fiber link is disclosed. The system comprises a transmitter to transmit an information signal that comprises an information spectrum, and to transmit two spectrally inverted copies of the information spectrum over the predefined length of the fiber link, the two spectrally inverted copies corresponding to a first spectrum with a first center wavelength and to a second spectrum with a second center wavelength, the second spectrum being inverted relative to the first spectrum and the second center wavelength being different from the first center wavelength, and a receiver to receive the first spectrum and the second spectrum, and to estimate a phase rotation of the second spectrum relative to the first spectrum by comparing a first phase measured from the first spectrum with a second phase measured from the second spectrum.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.