This resource provides comprehensive, up-to-date coverage of the principles, technologies, standards and applications of Dense Wavelength Division Multiplexing (DWDM). The volume is designed to enable the reader to understand how DWDM components, devices and networks operate; examine the configuration and design trade-offs of current DWDM components and systems; assess the latest standards for optical network management; discover recent technological developments; and decide the direction and most promising areas for future R&D in the field.