Abstract

Using a novel end-pumped, end-cooled geometry, we demonstrated a Nd:YVO4 cw laser that produces close to 2 W of single-mode output when pumped by a high-brightness 100-μm-core diode fiber source. An optical–optical conversion efficiency of 49% was obtained. Beam quality was found to be nearly diffraction-limited (M2 = 1.08) and independent of pumping power.

© 1997 Optical Society of America

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