With the explosion of information traffic, the role of optics becomes very significant to fulfill the demand of super fast computing and data processing and the role of optical amplifier is indispensable in optical communication field. This book covers different advance functionalities of optical amplifiers and their emerging applications such as the role of SOA in the next generation of optical access network, high speed switches, frequency encoded all-optical logic processors, optical packet switching architectures, microwave photonic system, etc. Technology of improving the gain and noise figure of EDFA and, the study of the variation of material gain of QD structure are also included. All the selected topics are very interesting, well organized and hope it will be of great value to the postgraduate students, academics and anyone seeking to understand the trends of optical amplifiers in present scenario.

With the explosion of information traffic, the role of optical amplifiers becomes very significant in fulfilling the demand of faster optical signals and data processing in the field of communication. This book covers different advanced functionalities of optical amplifiers as well as their emerging applications in optical communication networks. The first chapter deals with an efficient and validated time-domain numerical modelling of semiconductor optical amplifiers (SOAs) and SOA-based circuits, while the second chapter is based on the working of gallium nitride-based semiconductor optical amplifiers. The role of SOAs for the next generation of high-data-rate optical packet-switched network is presented in Chapter 3. Chapter 4 covers the all-optical semiconductor optical amplifier based on quantum dots (QD-SOA) and its function as an arithmetic processor. In Chapter 5, the authors have presented the role of SOAs in intensity modulation of the optical pulses and their use in deterministic timing jitter and peak pulse power equalization analysis. In Chapter 6, the investigation of broadband S-band to L-band erbium-doped fibre amplifier (EDFA) module is presented, and Chapter 7 includes the optimized design technique of Yb3+/Er3+-codoped phosphate microring resonator amplifiers. All selected chapters are very interesting and well organized, and I hope they will be of great value to postgraduate students, researchers, academics and anyone seeking to understand the advanced functionalities of optical amplifiers in the present scenario.

With the explosion of information traffic, the role of optics becomes very significant to fulfill the demand of super fast computing and data processing and the role of optical amplifier is indispensable in optical communication field. This book covers different advance functionalities of optical amplifiers and their emerging applications such as the role of SOA in the next generation of optical access network, high speed switches, frequency encoded all-optical logic processors, optical packet switching architectures, microwave photonic system, etc. Technology of improving the gain and noise figure of EDFA and, the study of the variation of material gain of QD structure are also included. All the selected topics are very interesting, well organized and hope it will be of great value to the postgraduate students, academics and anyone seeking to understand the trends of optical amplifiers in present scenario.

The electronics industry in Taiwan has shifted its emphasis from consumer- to information-based products. It is enjoying the bulk of the world market in computer motherboards, keyboards, scanners and PC monitors.Optoelectronics is a growing sub-group within information-based electronics. In addition to the established areas, other technologies such as optical storage, optical signal processing, optical switching and transmission are emerging. Research efforts at universities and research institutions are strongly supported by the official bodies of the government. The articles collected in this volume are contributed by the most active researchers in the area of optics and photonics in Taiwan. The subject areas covered such as Optical Materials, Devices and Systems are by no means representative of the breadth nor depth of optical research in Taiwan. Instead, they offer a snapshot of the ongoing work that will lead to success in the commercial world in future.

High speed circuits are crucial for increasing the bandwidth of transmission and switching of voice/video/data over optical fiber networks. The ever-increasing demand for bit rates higher than those available due to the explosion of Internet traffic has driven engineers to develop integrated circuits of performance approaching 100 Gb/s. Commercial lightwave products using high speed circuits of 10 Gb/s and beyond are readily available.High Speed Circuits for Lightwave Communications presents the latest information on circuit design, measured results, applications, and product development. It covers electronic and opto-electronic circuits for transmission, receiving, and cross-point switching. These circuits were implemented with various state-of-the-art IC technologies, including Si BJT, GaAs MESFET, HEMT, HBT, as well as InP HEMT and HBT. The book, written by more than 50 experts, will benefit graduate students, researchers, and engineers who are interested in or work in this exciting and challenging field of optical communications.