Optical Networks & Systems

The goal of the ONS department is to contribute in defining the evolution of future transport networks (spanning from metro packet/circuit aggregation to core optical networks) towards intelligent (dynamic, self-star), high-capacity, low-cost, highly-flexible, scalable, and energy-efficient software-defined optical networks seamlessly integrated with massive cloud/fog computing and storage services.

To achieve this goal, it focuses on two main research lines:

  1. Network Control and Service Management, to introduce automated, adaptive and virtualized end-to-end network functionalities for the aggregation and core network infrastructures built upon multiple switching technologies such as packet and optical. To do so, heterogenous control solutions such as GMPLS/PCE and  Software Defined Networking (SDN) are effectively applied and coordinated along with the adoption of the Network Function Virtualization (NFV) paradigm;
  2. Optical Transmission and Subsystems to provide SDN-enabled, adaptive and resource-efficient multi-dimensional transmission systems based on optical OFDM for dynamic and scalable elastic optical networks, as well as advanced performance monitoring and impairment mitigation techniques.

Demonstration and validation of proof of concepts are performed by means of the ADRENALINE Testbed®, an experimental infrastructure designed and developed by the CTTC ONS Department to conduct cutting-edge research activities in the context of: i) end-to-end SDN and NFV services integrating cloud, metro and core networks; ii) coherent and direct detection Optical OFDM systems for backhaul and backbone networks.