Advanced Tunable Optical Filter For Fiber Optic Communication Network

"It strikes an excellent balance between underlying theory and principles, rigorous derivation of design formulae and description of practical applications, ranging from device to system and network, performances and properties". -- International Journal of Optoelectronics "I would recommend it as a reference for those seeking to gain a basic understanding of fiber optic access networks and for technical managers who want an up-to-date overview of advances in this technology". -- Laser Focus World

A Unique, Cutting--Edge Approach to Optical Filter Design With more and more information being transmitted over fiber--optic lines, optical filtering has become crucial to the advanced functionality of today's communications networks. Helping researchers and engineers keep pace with this rapidly evolving technology, this book presents digital processing techniques for optical filter design. This higher--level approach focuses on filter characteristics and enables readers to quickly calculate the filter response as well as tackle larger and more complex filters. The authors incorporate numerous theoretical and experimental results from the literature and discuss applications to a variety of systems--including the new wavelength division multiplexing (WDM) technology, which is fast becoming the preferred method for system upgrade and expansion.

The rapid proliferation of the Internet has been driving communication networks closer and closer to their limits, while available bandwidth is disappearing due to an ever-increasing network load. Over the past decade, optical fiber communication technology has increased per fiber data rate from 10 Tb/s to exceeding 10 Pb/s. The major explosion came after the maturity of coherent detection and advanced digital signal processing (DSP). DSP has played a critical role in accommodating channel impairments mitigation, enabling advanced modulation formats for spectral efficiency transmission and realizing flexible bandwidth. This book aims to explore novel, advanced DSP techniques to enable multi-Tb/s/channel optical transmission to address pressing bandwidth and power-efficiency demands. It provides state-of-the-art advances and future perspectives of DSP as well.

Due to the continued rapid growth in the demand for network bandwidth, devices and subsystems that can support gigabit and multigigabit throughput have become increasingly important. In this chapter, we review several key technologies for fiber optic data communication. In particular, we focus on the technologies for wavelength division multiplexing (WDM), as it is the most important technique in advancing the communication bandwidth for the next generation broadband networks.

This resource provides the latest details on 5th generation photonic systems that can be readily applied to projects in the field. Moreover, the book provides valuable, time-saving tools for network simulation and modeling. It includes coverage of optical signal transmission systems and networks; a wide range of critical methods and techniques, such as MIMO (multiple-input and multiple-output) by employing spatial modes in few-mode and multicore optical fiber; OFDM (orthogonal frequency-division multiplexing) utilized to enhance the spectral efficiency and to enable elastic optical networking schemes; and advanced modulation and coding schemes to approach the Shannon's channel capacity limit. There are detailed discussions on the basic principles and applications of high-speed digital signal processing, as well as description of the most relevant post-detection compensation techniques

This book focuses on recent research and developments on optical communications. The chapters present different aspects of optical communication systems, comprising high capacity transmission over long distances, coherent and intensity modulated technologies, orthogonal frequency-division multiplexing, ultrafast switching techniques, and photonic integrated devices. Digital signal processing and error correction techniques are also addressed. The content is of interest to graduate students and researchers in optical communications.