As the field grew, Agrawal decided to split this text off from his Nonlinear Fiber Optics, which is more concerned with the discipline's fundamentals. This edition is intended for senior undergraduates, graduate students, engineers and technicians in the telecommunications industry, and scientists working with fiber optics and optical communications. It covers the building blocks of light-wave technology — fiber-based gratings, couplers, and interferometers — as well as amplifiers and lasers made using rare-earth-doped fibers; pulse-compression techniques; fiber-optic communication systems; and soliton-based transmission schemes.