Enabling Technologies For High Spectral-Efficiency Coherent Optical Communication Networks

Since the revival of coherent optical communications in 2006, significant progress has been made in the field. For example, spectral efficiency of optical communication systems has been increased from 0.8 b/s/Hz to over 14.0 b/s/Hz in a single mode fiber. This progress is the result of improved technologies such as advanced modulation, digital coherent detection, coding, and digital signal processing. The first part of the book is devoted to advanced modulation, coding, and multiplexing technologies. Various linear and nonlinear impairments and their digital mitigation methods are presented, followed by impairment-tolerant and hardware-efficient symbol and carrier recovery algorithms, plus issues and challenges in real-time implementation of high-speed digital coherent transceivers. The authors reveal important progress in photonic integration and performance monitoring, and look beyond WDM (wavelength division multiplexing) to space-division-multiplexing (SDM) based technologies, which can improve fiber and network capacity.

Chongjin Xie is a Researcher at Alcatel-Lucent in Holmdel, New Jersey. His research interests are in fiber optical communication systems and networks. Dr. Xie has authored and co-authored over 160 journal and conference publications in the field of optical communications. He is a senior member of IEEE and a member of OSA. He has served as Guest Editor for the Journal of Lightwave Technologies.

Xiang Zhou is a Researcher at AT&T Labs. He has authored over 100 journal and conference publications, and is the Associate Editor of Optics Express. Dr. Zhou is a senior member of IEEE and a member of OSA. He holds 32 US patents.