Optoelectronic Information Processing


Book Description

Topics in this volume on optoelectronic information processing include: channel transformations for improving colour pattern recognition; nonlinear cascaded correlation process for recognition of target in nonoverlapping noise; and Fourier-plane nonlinear filtering.




Optoelectronic Switching Systems in Telecommunications and Computers


Book Description

This book presents the general engineering considerations that have resulted in a fundamental change in telecommunications computer networks. It emphasizes optoelectronic switching in the fusion into traditional telecommunications.










Optoelectronic Integration: Physics, Technology and Applications


Book Description

As we approach the end of the present century, the elementary particles of light (photons) are seen to be competing increasingly with the elementary particles of charge (electrons/holes) in the task of transmitting and processing the insatiable amounts of infonnation needed by society. The massive enhancements in electronic signal processing that have taken place since the discovery of the transistor, elegantly demonstrate how we have learned to make use of the strong interactions that exist between assemblages of electrons and holes, disposed in suitably designed geometries, and replicated on an increasingly fine scale. On the other hand, photons interact extremely weakly amongst themselves and all-photonic active circuit elements, where photons control photons, are presently very difficult to realise, particularly in small volumes. Fortunately rapid developments in the design and understanding of semiconductor injection lasers coupled with newly recognized quantum phenomena, that arise when device dimensions become comparable with electronic wavelengths, have clearly demonstrated how efficient and fast the interaction between electrons and photons can be. This latter situation has therefore provided a strong incentive to devise and study monolithic integrated circuits which involve both electrons and photons in their operation. As chapter I notes, it is barely fifteen years ago since the first demonstration of simple optoelectronic integrated circuits were realised using m-V compound semiconductors; these combined either a laser/driver or photodetector/preamplifier combination.




Photonic Reservoir Computing


Book Description

Photonics has long been considered an attractive substrate for next generation implementations of machine-learning concepts. Reservoir Computing tremendously facilitated the realization of recurrent neural networks in analogue hardware. This concept exploits the properties of complex nonlinear dynamical systems, giving rise to photonic reservoirs implemented by semiconductor lasers, telecommunication modulators and integrated photonic chips.




OPTOELECTRONIC DEVICES AND SYSTEMS


Book Description

This textbook, now in the second edition, offers a completely up-to-date and in-depth introduction to the principles and applications of optoelectronic devices and systems. The text gives a detailed description of optical fibre waveguides, optical fibre cables and their characteristics, manufacturing process and drawing of optical fibres. In addition, it deals with photon sources, photon detectors, fibre optics as a medium and LAN and WAN systems, short and long haul optical fibre communication systems, electro-optic modulators and their characteristics. The second edition possesses a new section on Optical Fibre Based Broadband High Speed Network in Chapter 8, thus highlighting an updated version. Apart from this, a new chapter on Intensity Dependent Refractive Index Effect has been introduced into the text that discusses the effect of focusing on spatial and temperature profiles in a non-linear crystal medium. This chapter further explains the various physical phenomena like the creation of sharp opaque filaments, irradiation induced damaging of the crystal, oscillatory waveguide propagation, saturation effects and other properties in detail. Primarily intended for the undergraduate students of electronics and communication engineering, the book should also prove extremely useful for the postgraduate students of physics. Key features • Provides comprehensive explanation of optical fibre communication with illustrations. • Gives extensive theory and experimental and holographic applications. • Discusses the applications of lasers in industry, military and medical as well as fibre optics applications. • Describes optical computing, optical gates and their applications with illustrations. • Includes solved numericals at the end of book for better understanding of topics.




Modeling and Applications of Optoelectronic Devices for Access Networks


Book Description

Topic Editor Raffaele Gravina is a founder and a co-owner of company SenSysCal S.R.L. Topic Editor Guofu Zhou is a founder and a director of Electronic Paper Display Institute of South China Normal University and science advisor of Eindhoven University of Technology. All other Topic Editors declare no competing interests with regards to the Research Topic subject.




Fundamentals of Optical Networks and Components


Book Description

This book is intended as an undergraduate/postgraduate level textbook for courses on high-speed optical networks as well as computer networks. Nine chapters cover the basic principles of the technology and different devices for optical networks, as well as processing of integrated waveguide devices of optical networks using different technologies. It provides students, researchers and practicing engineers with an expert guide to the fundamental concepts, issues and state-of-the-art developments in optical networks. It includes examples throughout all the chapters of the book to aid understanding of basic problems and solutions. Presents basics of the optical network devices and discusses latest developments Includes examples and exercises throughout all the chapters of the book to aid understanding of basic problems and solutions for undergraduate and postgraduate students Discusses different optical network node architectures and their components Includes basic theories and latest developments of hardware devices with their fabrication technologies (such as optical switch, wavelength router, wavelength division multiplexer/demultiplexer and add/drop multiplexer), helpful for researchers to initiate research on this field and to develop research problem-solving capability Reviews fiber-optic networks without WDM and single-hop and multi-hop WDM optical networks P. P. Sahu received his M.Tech. degree from the Indian Institute of Technology Delhi and his Ph.D. degree in engineering from Jadavpur University, India. In 1991, he joined Haryana State Electronics Development Corporation Limited, where he has been engaged in R&D works related to optical fiber components and telecommunication instruments. In 1996, he joined Northeastern Regional Institute of Science and Technology as a faculty member. At present, he is working as a professor in the Department of Electronics and Communication Engineering, Tezpur Central University, India. His field of interest is integrated optic and electronic circuits, wireless and optical communication, clinical instrumentation, green energy, etc. He has received an INSA teacher award (instituted by the highest academic body Indian National Science Academy) for high level of teaching and research. He has published more than 90 papers in peer-reviewed international journals, 60 papers in international conference, and has written five books published by Springer Nature, McGraw-Hill. Dr Sahu is a Fellow of the Optical Society of India, Life Member of Indian Society for Technical Education and Senior Member of the IEEE.