Transmitting information over optical fibers requires a high degree of signal integrity with respect to noise levels existing in optical systems. The methods and techniques for noise evaluations are important so that high performance can be obtained. This book provides a fundamental understanding of noise generation processes in optical communications and photonic signals. It discusses techniques for noise evaluation in optical communication systems, especially digital optical systems, as well as transmission system performance and noise impacts in photonic processing systems.

Preface. Acknowledgement. Introduction/Why noises are important in optical communications. Noises and Fundamental Sensitivity Limit. ASK transmission systems. Phase Modulation Systems. QAM modulation Systems. OFDM optical Systems. Optically amplified reception Systems. Raman amplification and noise processes. Phase noises and nonlinear noises. Compensation to combat noises. Quantum limits and receiver sensitivity. Noises in microwave photonic systems. Noises in photonic processing systems. Appendix 1: Techniques for electronic noise evaluations. Appendix 2: Essential terms of noises. Appendix 3: Essential parameters of noises and optical transmission lines.

Le Nguyen Binh is a technical director at the European Research Center of Huawei Technologies Co., Ltd. in Munich, Germany. He is the editor, author, and/or coauthor of numerous books, as well as the editor of CRC Press' Optics and Photonics series.