Status of gravitational wave detection

Taylor and Hulse discovery of Gravitational Wave (GW) emission by the compact binary system composed by two Neutron Stars PSR1913+16 has been, for the experimental physicists working in this field, the definitive thrust allowing to reach the extremely sophisticated technology needed for investigating in this field of research. Today at least other 6 similar systems are investigated and energy loss remarkably agrees with the prediction of GR. In this paper I will try to shortly explore the steps that experimentalists followed for the understanding of the very GW emission mechanism and the principles on which a GW detector is working together with the technology of today's detectors. Finally, a sensitivity and bandwidth comparison between all the existing detectors, will be presented.