Patent · US Active

Filter-less generation of coherent optical subcarriers

US8638489B2 · kind B2 · utility

2Cited by

6References

20Claims

0Family size

Assignee

Cisco Technology, Inc. · US

Inventors

Thomas Duthel · Nuremberg, DE
James Whiteaway · Sawbridgeworth, GB

Key dates

Filing date	Oct 10, 2011
Grant date	Jan 28, 2014
Priority date	—
Expiry date	Feb 21, 2032

Classification

Technology area (CPC H)Electricity
CPC primaryH04B10/506
WIPO fieldTelecommunications
WIPO sectorElectrical engineering

Abstract

Techniques and configurations are provided to generate multiple coherent optical subcarriers. A laser source generates as output a light beam at a carrier frequency. A multicarrier generator is provided that is coupled to the laser source and comprises one or more dual carrier generators each configured to modulate the light beam at the same modulation frequency or different modulation frequencies so as to output a plurality of light beams each at a different subcarrier frequency that is offset from the carrier frequency. The multicarrier generator generates the plurality of light beams on individual outputs, e.g., fibers, without the need for an optical demultiplexing filter.

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