Beam Alignment Strategy Under Hardware Constraints for D-Band Communications

International audienceThis paper describes the antenna beam alignment strategy of a D-band backhaul link adopted in the DRAGON project. The aim is to continuously compensate for antenna vibrations. This strategy is based on a periodic assessment of beams stored in a codebook, and can be implemented independently in both ends of the link. Hardware requirements coming from the envisioned architecture of the whole transceiver are taken into consideration. In particular, communications among the different involved boards restrict the periodicity at which the beams of the codebook can be assessed. The design of the codebook and the algorithm for beams selection are also discussed. Simulations based on a software specifically developed demonstrate that the solution meets the tracking specifications for an D-band link associated to realistic antenna movements

Mitigation of Atmospheric Turbulence in an Optical Free Space Link With an Integrated Photonic Processor

Mitigation of turbulence in a Free Space Optical communication link is demonstrated using an integrated programmable optical processor. 10Gbit/s OOK signals are successfully transmitted on an indoor setup emulating hundreds of meters link