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Highly Efficient 900 nm Laser Emission of Nd3+ in Strontium Lanthanum Aluminate

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Abstract

Composition dependence of the spectroscopic properties of Nd3+ in Mg-compensated strontium lanthanum aluminate Sr1−xLax−yNdyMgxAl12−xO19 (Nd:ASL)enables selection of composition and pumping conditions that grant highly efficient quasi-three-level laser emission around 900 nm. Based on a proper selection of these conditions, 900 nm laser emission with slope efficiencies of 0.74 and 0.84 by 792 nm 4F5/2 and respectively 865 nm 4F3/2 pumping of Nd3+ is demonstrated.

© 2005 Optical Society of America

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