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Patarnello , Francesco (2010) Sampling digital coherent receiver for demultiplexing and processing of OTDM signals employing high-order modulation. [Laurea specialistica biennale]

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Abstract

In this thesis, we present a study of optical communication systems that make use of multilevel modulations and exploits coherent detection with digital signal processing (DSP) and optical time division multiplexing (OTDM). The Matlab modeling of an optical communication system if shown and the different elements of a DSP unit are analyzed. In particular we studied the Chromatic Dispersion (CD) compensation with Time Domain Equalizer (TDE), the Polarization Mode Dispersion (PMD) and polarization rotation compensation with adaptive equalizer, the digital phase estimation with Feed Forward (FF) algorithms and the frequency offset compensation. Next, we present the OTD demultiplexing for optical systems that utilize coherent receivers. A set of numerical simulation has been done for the study of the performance of the model implemented. At last we show the results obtained during a laboratory experiment. A back-to-back transmission of a 4-Channels OTDM QPSK system at 160 Gb/s with coherent detection and digital signal processing has been successfully performed and the results are presented and commented

Item Type:Laurea specialistica biennale
Corsi di Laurea specialistica biennale:Facoltà di Ingegneria > Ingegneria elettronica
Uncontrolled Keywords:optical communication system, optics, fiber optics, optical fiber, modeling, receiver, high-order modulation, OTDM, coherent receiver, coherent detection, DSP, DQPSK, QPSK, 16QAM
Subjects:Area 09 - Ingegneria industriale e dell'informazione > ING-INF/03 Telecomunicazioni
Codice ID:25115
Relatore:Valcher, Maria Elena
Data della tesi:12 July 2010
Biblioteca:Polo di Ingegneria > Biblioteca di Ingegneria dell'Informazione e Ingegneria Elettrica "Giovanni Someda"
Tipo di fruizione per il documento:on-line per i full-text
Tesi sperimentale (Si) o compilativa (No)?:Yes

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