Patent · US Expired

Method for the transmission of optical polarization multiplex signals

US7509054B2 · kind B2 · utility

16Cited by

4References

17Claims

0Family size

Assignee

Nokia Siemens Networks GmbH & Co. KG · DE

Inventors

Stefano Calabro · Birkenfeld, DE
Erich Gottwald · Holzkirchen, DE
Nancy Hecker · Innsbruck, AT
Georg Sebald · Birkenfeld, DE
Bernhard Spinnler · Munich, DE

Key dates

Filing date	Aug 13, 2003
Grant date	Mar 24, 2009
Priority date	—
Expiry date	Mar 1, 2025

Classification

Technology area (CPC H)Electricity
CPC primaryH04J14/06
WIPO fieldTelecommunications
WIPO sectorElectrical engineering

Abstract

Binary signals are converted at the transmission end into two optical signals which are combined into a polarization multiplex signal and are then transmitted. The transmitted polarization multiplex signal is divided at the receiving end into two polarized signal parts which are converted in a linear manner into orthogonal electrical components and are supplied to a multidimensional filter. Said multidimensional filter replaces a polarization controller, restores the signal values that correspond to the signals at the transmission end, and compensates signal distortions.

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