In recent years, technological advances in optical transport switches have allowed service providers to support the same fast recovery in mesh networks previously available in ring networks while achieving better capacity efficiency and resulting in lower capital costs. Optical transport networks today not only provide trunking capacity to higher-layer networks, such as inter-router connectivity in an IP-centric infrastructure, but also support efficient routing failure recovery and fast high-bandwidth services. Optical mesh networks will enable a variety of dynamic services such as bandwidth-on-demand, Just-In-Time bandwidth, bandwidth scheduling, bandwidth brokering, and optical virtual private network that opens new opportunities for service providers and their customers the same. Path Routing in Mesh Optical Networks combines both theoretical and practical aspects of routing and dimensioning for mesh optical networks. Path Routing in Mesh Optical Networks Presenting in-depth treatment of a particular class of optical networks, namely Since most developing core network backbone to take advantage of intelligent network element mesh for the procurement and recovery services, Path Routing in Mesh Optical Networks will be a very valuable tool for researchers and engineers in industry who are responsible for designing, developing, disseminating and maintaining mesh optical networks.