2009
DOI: 10.1515/joc.2009.30.2.74
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Reduction of the Signal Nonlinear Distortion in CATV Systems applying Dual Mach-Zehnder Modulators

Abstract: The paper deals with some investigations aimed at applying compensation techniques to reduce nonlinear signal distortion in the Mach-Zehnder modulator of HFC CATV systems. The frequency distribution of second-and third-order intermodulation products of N-channel transmission systems is shown. Models of dual-parallel and dual-cascade Mach-Zehnder modulators are suggested based on both the mathematical model of a conventional Mach-Zehnder modulator and the features of the CATV system itself, thus making it possi… Show more

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