Abstract

A diode-laser side-pumped Nd:YAG laser that uses a simple, multipass pumping geometry has been investigated. This geometry allows efficient pumping of small-diameter laser rods, reduced dependence on pump wavelength, and efficient TEM00-mode operation. A 5.8-mJ output energy in a near TEM00 mode has been obtained for 21.5-mJ pump energy, which corresponds to an optical efficiency of 27%. Corresponding results from numerical simulations show similar good mode quality and an optical efficiency of 40%.

© 1992 Optical Society of America

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