FIBER OPTICS & LASERS ; THE TWO REVOLUTION

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The invention of the laser in 1960 provided mankind with a unique source of light, which is highly directional, spectrally pure and extremely bright. The development of such a unique source of light ushered in a large number of applications in many diverse areas such as communications, medicine, defence, etc. Besides, lasers have found numerous commercial uses and the number of such applications is still rising. Today, light wave communication using hair-thin optical fibers of glass has truly revolutionised communication and has been primarily responsible for the Internet explosion. Salient Features • An introductory, easy-to-understand and purely non-mathematical text •Covers state-of-the-art developments in the field of fiber optics - fiber amplifiers, dispersion compensation and non-linear effects •Discusses basics of lasers with emphasis on special properties and applications •Adopts an application-oriented approach - applications explained with interesting illustration

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Ajoy Ghatak is currently Emeritus Professor of Physics at IIT Delhi. He obtained his PhD from Cornell University. His areas of interest are Fiber Optics and Quantum Mechanics. K Thyagarajan is currently Professor of Physics at IIT Delhi. He obtained his PhD from IIT Delhi. His current research interests are in the fields of optical fiber amplifiers and non-linear optics. Table of Contents Preface · List of Abbreviations · Important Milestones · Introduction · Light Waves · Carrier Wave Communication · The Optical Fiber · Attenuation in Optical Fibers · Pulse Dispersion in Optical Fibers · Fiber-Optic Communication Systems · Erbium-Doped Fiber Amplifier (EDFA) · Raman Fiber Amplifier (RFA) · Fiber Bragg Gratings (FBG) · Fiber-Optic Components · Non-linear Effects in Optical Fibers · Optical Fiber Sensors · Basics of Lasers · Properties of Laser Beams · Some Important Applications of Lasers · Some Laser Systems · Bibliography · Index