Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
August 18, 2009
Patent Application Number
11154930
Date Filed
June 15, 2005
Patent Citations Received
Patent Primary Examiner
Patent abstract
Optical techniques, devices and systems for combining duobinary modulation and optical subcarrier multiplexing in optical communication applications. An analog mixer is used to mix a duobinary signal for a data channel and a local oscillator signal to produce a modulation control signal for controlling the subsequent optical subcarrier multiplexing modulation. Various optical subcarrier multiplexing modulation techniques may be used including optical single sideband modulators and optical double sideband modulators.
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