Today, fiber optics are being installed where a single fiber has the ability to carry information as much as 200 times faster than is possible just five years ago. WDM technology relies on the fact that optical fiber can carry many wavelengths of light simultaneously without interaction between each wavelength. * Allows engineers working in optical communications (from system to component) to understand the principles and mechanisms of each key component they deal with for the design of optical systems. * Providing an excellent resource for engineers and researchers involved in all aspects of fiber optic communications, such as optoelectronics, equipment / system design, and manufacturing. * Provides comprehensive coverage of key concepts in optical networking and its application in commercial systems.