Abstract

Solar pumped lasers are candidates for wireless power transmission in space, free space optical communication and photochemistry. The present paper describes the progress on a joint project to develop solar pumped lasers, focusing on the temporal and spectral shaping of the laser beam, which comply with those applications. The program emphasizes the design, fabrication and testing of laser rods, passive and active Q-switches and non-linear crystals. This work is carried on in four projects, the first involves a study of possible applications of such a laser, which will determine the required solar pumped laser specifications. In the second project, the solar tower facilities at Weizmann Institute are used for studying the performance of the above mentioned laser components. The third project includes the construction of an innovative 7.5 kW solar concentrator at TEMED Industrial Park facility, to be used for the further study of laser components. The fourth project is dedicated to the development of a master oscillator-power amplifier chain, in which a diode-pumped laser serves as the initial oscillator, while the amplifier is solar pumped.

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