Digital Processing -

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Résumé :
With coherent mixing in the optical domain and processing in the digital domain, advanced receiving techniques employing ultra-high speed sampling rates have progressed tremendously over the last few years. These advances have brought coherent reception systems for lightwave-carried information to the next stage, resulting in ultra-high capacity global internetworking. Digital Processing: Optical Transmission and Coherent Receiving Techniques describes modern coherent receiving techniques for optical transmission and aspects of modern digital optical communications in the most basic lines. The book includes simplified descriptions of modulation techniques for such digital transmission systems carried by light waves. It discusses the basic aspects of modern digital optical communications in the most basic lines. In addition, the book covers digital processing techniques and basic algorithms to compensate for impairments and carrier recovery, as well as noise models, analysis, and transmission system performance.

Sommaire:
Overview of Optical Fiber Communications and DSP-Based Transmission Systems Introduction From Few Mb/s to Tbps: Transmission and Receiving for Optical Communications Systems Digital Modulation Formats Optical Demodulation: Phase and Polarization Diversity Technique Organization of the Book Chapters Optical Fibers: Guiding and Propagation Properties Optical Fibers: Circular Optical Waveguides Nonlinear Optical Effects Signal Attenuation in Optical Fibers Signal Distortion in Optical Fibers Transfer Function of Single-Mode Fibers Fiber Nonlinearity Revisited Special Dispersion Optical Fibers SMF Transfer Function: Simplified Linear and Nonlinear Operating Region Numerical Solution: Split-Step-Fourier Method Nonlinear Fiber Transfer Functions and Compensations in Digital Signal Processing Concluding Remarks External Modulators for Coherent Transmission and Reception Introduction External Modulation and Advanced Modulation Formats Generation of Modulation Formats Photonic MSK Transmitter Using Two Cascaded Electro-Optic Phase Modulators I-Q Integrated Modulators DAC for DSP-Based Modulation and Transmitter Remarks Optical Coherent Detection and Processing Systems Introduction Coherent Receiver Components Coherent Detection Self-Coherent Detection and Electronic DSP Electronic Amplifiers: Responses and Noises Digital Signal Processing Systems and Coherent Optical Reception Concluding Remarks Appendix: A Coherent Balanced Receiver and Method for Noise Suppression Optical Phase Locking Overview of Optical Phase Lock Loop Optical Coherent Detection and Optical PLL Performances: Simulation and Experiments OPLL for Superchannel Coherent Receiver Concluding Remarks Digital Signal Processing Algorithms and Systems Performance Introduction General Algorithms for Optical Communications Systems MLSD and Viterbi Maximum A Posteriori Technique for Phase Estimation Carrier Phase Estimation Systems Performance of MLSE Equalizer-MSK Optical Transmission Systems DSP-Based Coherent Optical Transmission Systems Introduction QPSK Systems 16 QAM Systems Tera-Bits/s Superchannel Transmission Systems Concluding Remarks Higher-Order Spectrum Coherent Receivers Bispectrum Optical Receivers and Nonlinear Photonic Pre-Processing NL Photonic Signal Processing Using Higher-Order Spectra