Review : “Lightwave Communication Systems have emerged as high-speed broadband links across many parts of the world. Although several textbooks have been written on this subject, many of these do not emphasise practical lightwave Systems.This textbook on fiber optics describes practical lightwave systems along with new developments in fibers-optics technologies. Specifically, it introduces you to optical fibers, light sources external modulators, Photodettectors, passive components, wavelength switching and crossconnects, optical amplifiers and optical receivers " Electronics For You – February 2007