Transcription of Chapter 10 Coherent Optical Communication Systems
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Chapter 10 Coherent Optical Communication Systems
Chapter 10 Coherent Optical CommunicationSystemsIoannis RoudasAbstractThe rapid evolution of long-haul Optical communications Systems ,witnessed in the last five years, is due to the gradual adoption of spectrally effi-cient, multilevel modulation formats, in conjunction with polarization divisionmultiplexing (PDM) and Coherent intradyne detection assisted by digital signalprocessing (DSP). The objective of this tutorial Chapter is to briefly review theoperating principles of state-of-the-art long-haul Coherent Optical communicationssystems. Due to limitations in space, it focuses mainly on Coherent Optical systemsusing quadrature phase-shift keying (QPSK) IntroductionThe commercialization in 2008 of the first 40 Gb/s Coherent Optical communica-tions Systems employing polarization division multiplexing (PDM) Quadraturephase-shift keying (QPSK) and intradyne detection assisted by digital signalprocessing (DSP) marked a major milestone in long-haul transmission [1,2].
using quadrature phase-shift keying (QPSK) modulation. 10.1 Introduction The commercialization in 2008 of the first 40 Gb/s coherent optical communica-tions systems employing polarization division multiplexing (PDM) Quadrature phase-shift keying (QPSK) and intradyne detection assisted by digital signal
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