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Modeling of a solar-pumped iodine laserThe direct conversion in space of solar radiation into laser radiation for power transmission to earth, satellites, or deep space probes shows promise as a reasonably simple technology and may have cost advantage in deployment and greater reliability compared to other methods of space power generation and transmission. The main candidates for solar pumping are the gas dynamic, photochemical, and direct photoexcited lasers. Here consideration is given to the photochemical reaction of alkyliodides which predominantly excite the I(2P1/2) state which then lases at 1.315 microns. The iodine ground state is eventually lost to reconstituting the gas or in the formation of molecular iodine. The rates at which the gas is required to be recycled through the laser system are modest. The side exposure at 100-fold solar concentration of a 100-m long tube with a 1 sq m cross section is estimated to provide 20 kW of continuous laser output. Scaling laws and optimum operating conditions of this system are discussed.
Document ID
Document Type
Reprint (Version printed in journal)
Wilson, J. W. (NASA Langley Research Center Hampton, Va., United States)
Lee, J. H. (Vanderbilt University Nashville, Tenn., United States)
Date Acquired
August 11, 2013
Publication Date
November 1, 1980
Publication Information
Publication: Virginia Journal of Science
Volume: 31
Subject Category
Distribution Limits