Optical data link

        Wireless communication, designed to serve short distance point-to-point or multipoint configuration, was confined until few years ago to the radio-frequency (RF) spectral range, and was widespread adopted. As the need for higher data throughput increased, this solution had shown its limitations, especially because of the limited transfer capacity and license costs. Within this context, data transfer over optical carrier between two points with a clear line of sight, under indoor or outdoor conditions, became a solution of choice. In collaboration with the developer (Institute for Development of Advanced Applied Systems, Slovenia) a team from the Center for Advanced Laser Technologies (CETAL) at INFLPR installed an easy to deploy, easy to use optical wireless system, based on mass production electro-optical modules and a scalable 3D printing technology (KORUZA). It makes possible data transmission at up to 1 Gb/s rate between two location up to 100 m apart, over a laser carrier operating in the near-IR range, under Class 1 safety conditions. The system is operated as a test bed for future developments and for the evaluation of optical wireless communication links under extreme environment conditions. The setup is part of a planned worldwide investigation on optical communication links performances. Until now, similar units are running in Czech Republic, Romania, Slovenia, UK, and USA. This activity is part of the Romanian contribution to the COST Action IC1101, “Optical Wireless Communications - An Emerging Technology”, coordinated in Romania by dr. D. Sporea. Live information on this optical wireless communication (OWC) system operation can be accessed at: https://nodes.wlan-si.net/node/wwk-2a/ and https://nodes.wlan-si.net/node/wwk-2b/. A contribution referring to results achieved will be presented at ROMOPTO International Conference, to be held in September 2015, in Bucharest. The Romanian team future plans include further cooperation with the developer for the design of the system new generation and original investigations for the use of this data link in niche applications.