Hyper-thrusted luminal space-craft application of beam expanders

In this paper I intend to use beam expanders to converge and diverge the laser beam according to the need of the size of the laser beam to be focused and also use hyper-thrusters in order to stabilize the laser source and prevent it from moving in the backwards direction due to back-thrust. Thus we will be able to travel at the velocity of light using this system in a space-station which is stabilized and has a reduced laser-source size.