Suresh Subramaniam is at the George Washington University, USA. Maite Brandt-Pearce is at the University of Virginia, USA. Piet Demeester is at the Ghent University, Belgium. Chava Vijaya Saradhi is at the Nanyang Technological University, Singapore. Maite Brandt-Pearce is at the University of Virginia, USA. Piet Demeester is at the Ghent University, Belgium. Chava Vijaya Saradhi is at the Nanyang Technological University, Singapore.

• Introduction.- A tutorial of physical layer impairments in optical networks.- Dynamic Impairment-Aware Routing and Wavelength Assignment.- Routing andWavelength Assignment in WDM Networks with Mixed Line Rates.- Considering Linear and Non-Linear Impairments in Planning WDM Networks.- Cross-Layer Control of Semi-Transparent Optical Networks under Physical-Parameter Uncertainty.- Analytical models for QoT-aware RWA performance.- Impairment-Aware Control Plane Architectures to Handle Optical Networks of the Future.- QoT-Aware Survivable Network Design.- Energy-efficient traffic engineering.- Multi-layer Protection with Integrated Routing in MPLS-over-WDM Optical Networks.- Cross-Layer Survivability.- Photonics Grids and Clouds.- Bringing Optical Network Control to the User Facilities: Evolution of the User Controlled Light Path Provisioning Paradigm.-Cross-Layer Network Design and Control Testbeds.- Free Space Optical Wireless Network.