We propose a new concept controlling a satellite by a fiber laser loaded in it and demonstrated the acceleration of pendulum with 7kW/2n and 2kHz fiber laser, and measured the Cm of 16Ns/MJ corresponding to the scaling of YAG laser. This laser can be easily bundled to generate much larger power. For more efficient acceleration, we propose "metal-free water cannon target", the new concept of propulsion using only water. The momentum coupling coefficient of 2500[Ns/MJ] was achieved with vacuum pump oil instead of water, and we succeeded in controlling the driving direction by the system based on the new concept. This can be used for thrusting a satellite and controlling its posture in combination with fiber lasers.
We found that water overlay on a metal layer is more effective than solid overlay [1]. By using this target we demonstrated the successful flight of paper-airplane of 5 cm-size over a distance of l-2m[2]. In this paper, repetitive water supply system and levitation system are proposed for practical application, and examined by experiments. We succeeded in driving an object continuously using repetitive water supply and air slider. We also succeeded in driving 300g object by 0.5J laser using these equipments. In this paper, we try to find out a new possibility of water-powered laser propulsion.
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