Fiber optics is the hottest topic in communications and this book from the world's leading experts clearly lays out all the details of optical communications engineering. It is an essential technical guide and solutions kit for the super-fast, super-broad fiber systems and devices powering the fastest-growing communications infrastructure. It has methods for generating above peak performance, and clear explanations and answers to tough challenges for WDM, DWDM, amplifiers, solitons, and other key technologies.