Patent · US Active

Methods for the optical transmission of polarization multiplex signals

US7865080B2 · kind B2 · utility

105Cited by

8References

8Claims

0Family size

Assignee

Nokia Siemens Networks GmbH & Co. KG · DE

Inventors

Nancy Hecker · Innsbruck, AT
Werner Paetsch · Birkenfeld, DE
Dirk Van Den Borne · Munich, DE

Key dates

Filing date	Jan 25, 2006
Grant date	Jan 4, 2011
Priority date	—
Expiry date	Aug 12, 2027

Classification

Technology area (CPC H)Electricity
CPC primaryH04J14/0305
WIPO fieldTelecommunications
WIPO sectorElectrical engineering

Abstract

In order to reduce mutual interferences between POLMUX and signals, the signals are transmitted with differed to each other carrying signals, thereby making it possible to obtain the circular polarization of each resulting POLMUX signal. Each second POLMUX signal is transmissible with an opposite circular polarization. In order to reduce also interferences when only one modulated data signal is transmitted through a POLMUX channel, a polarization plane of modulated data signals of each second POLMUX channel is turned at 45°. In a variant, polarization multiplex signals are produces and the resulting polarizations thereof in adjacent channels are perpendicular to each other.

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