Efficient operation of a Nd:YAG laser on the quasi-three-level transition at 938.5 nm, end-pumped by a 20 W diode bar is reported. For the maximum available incident power of 13.6 W we have obtained a CW laser output at room temperature of 2.0 W in a near diffraction-limited TEM00 beam.
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Koch et al. (1996) studied this question.
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