This book provides a thorough review of multi-mode propagation inside optical waveguides and free space, which is receiving particular attention for its promising applications in communications and sensing. At the heart of the book is the matter of how modes couple and interfere due to engineered or random index fluctuations, forming functional devices.

The chapters cover topics such as multi-mode interference, coupled mode theory, and mode generation. Readers discover how a universal coupled mode theory can describe mode propagation, enabling stochastic analysis and avoiding time-consuming simulations. The book also delves into mode division multiplexing systems and digital signal processing (DSP) algorithm-enabled multiple-input multiple-output (MIMO) transmission in multi-mode systems.

Researchers in the field of optical communications and for physicists and engineers will find this book to be invaluable. It offers a comprehensive review of multi-mode transmission systems' basic physics and applications, making it essential for anyone interested in advancing their understanding of this rapidly expanding field.

Develops a more general coupled mode theory beyond the classic guided wave optics Offers a comprehensive review of multi-mode transmission systems and their basic physics Extends the multi-mode concept from a spatial to a temporal domain and four-dimensional space-time

Autorentext

Junhe Zhou received his B.S. and Ph. D. degrees in electronics engineering from Shanghai Jiaotong University in 2002 and 2008, respectively. From 2006 to 2007, he worked as a joint-educated Ph. D. student in École Nationale Supérieure des Télécommunications (ENST). In 2009, he moved to the Department of Electronics Science and Engineering at Tongji University, where he is currently a professor. His research interests are mainly in optical communication systems analysis and optical signal processing. He has co-authored over 130 peer-reviewed papers published in international journals and presented at conferences. He is a member of IEEE and of Optica, formerly known as The Optical Society, or OSA. Mei Song Tong is a distinguished/permanent professor and vice dean of the College of Microelectronics at Tongji University, Shanghai, China. He has also held an adjunct professorship at the University of Illinois at Urbana-Champaign, Urbana, Illinois, USA, and an honorary professorship at the University of Hong Kong, China. He received his B.S. and M.S. degrees in electrical engineering from Huazhong University of Science and Technology, Wuhan, China, and his Ph.D. degree in electrical engineering from Arizona State University, Tempe, Arizona, USA. He has published more than 600 papers in refereed journals and conference proceedings and has co-authored six books or book chapters. His research interests include electromagnetic field theory, antenna theory and design, simulation and design of RF/microwave circuits and devices, interconnect and packaging analysis, inverse electromagnetic scattering for imaging, and computational electromagnetics.

Inhalt

Multimode Propagation Fundamentals.- Multimode Interference in Waveguides and Free Space.-Coupled Mode Theory for Multi-mode Propagation.- Wave Propagation in Multi-core Fibers.- Random Coupling Theory for Multi-mode Waveguides and Free Space Propagation.- Mode Generation and Multiplexing for Multi-mode Waveguides and Free Space.- Temporal Modes and Spatiotemporal Modes.