High Speed Optical Communication Systems - Couverture souple

Ibrahim, Selwan K

 
9783639041279: High Speed Optical Communication Systems
Couverture souple
ISBN 10 : 3639041275 ISBN 13 : 9783639041279
Editeur : VDM Verlag Dr. Mueller E.K., 2008

Synopsis

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 or ultra long haul optical fiber transmission systems, DQPSK and DQPSK PolDM modulation formats featuring better receiver sensitivities are potential candidates.

Les informations fournies dans la section « Synopsis » peuvent faire référence à une autre édition de ce titre.

Éditeur
VDM Verlag Dr. Mueller E.K.
Date d'édition
2008
Langue
anglais
ISBN 10 
3639041275
ISBN 13 
9783639041279
Reliure
Broché
Nombre de pages
108
Coordonnées du fabricant
non disponible
Personne responsable
non disponible