High Speed Optical Communication Systems
Study of Multilevel Modulation Formats
(Sprache: Englisch)
Spectrally efficient modulation formats can be used to overcome the problems associated with limited channels and bandwidth of Dense Wavelength Division Multiplexing (DWDM) optical systems. Multilevel modulation formats are considered spectrally efficient...
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Spectrally efficient modulation formats can be used to overcome the problems associated with limited channels and bandwidth of Dense Wavelength Division Multiplexing (DWDM) optical systems. Multilevel modulation formats are considered spectrally efficient and can double the transmission capacity by transmitting more information in the amplitude, phase, polarization or a combination of all. Here we have studied and evaluated different multilevel modulation formats in a practical optical transmission system. Such modulation formats are Differential Quadrature Phase Shift Keying (DQPSK), DQPSK with Polarization Division Multiplex (PolDM), Quaternary Intensity Modulation (4-IM, QASK), Quaternary Duobinary (QDB), and Quaternary Polarization Duobinary (QPolDB). The QDB and QPolDB quaternary signals are attractive for DWDM systems applied for short reach (several kilometers) to medium reach (several hundred kilometers) transmission applications (metro applications). However, for long orultra long haul optical fiber transmission systems, DQPSK and DQPSK PolDM modulation formats featuring better receiver sensitivities are potential candidates.
Autoren-Porträt von Selwan K. Ibrahim, Selwan Ibrahim
Ibrahim, Selwan K.Selwan K. Ibrahim, Dr.-Ing.: Received his B.Sc. and M.Sc. degrees in Electronics and Communication Engineering from the University of Baghdad in 1999 and 2002, respectively, and his Ph.D. degree (Dr.-Ing.) in Electrical Engineering from the University of Paderborn in 2007. Postdoctoral Researcher at Tyndall National Institute, Cork, Ireland.
Bibliographische Angaben
- Autoren: Selwan K. Ibrahim , Selwan Ibrahim
- 2008, 108 Seiten, Maße: 15 x 22 cm, Kartoniert (TB), Englisch
- Verlag: VDM Verlag Dr. Müller e.K.
- ISBN-10: 3639041275
- ISBN-13: 9783639041279
Sprache:
Englisch
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