Abstract

An efficient laser-diode-pumped $\mathrm{Nd}\text{:}{\mathrm{LuVO}}_4$ 916 nm laser by using the polarized pumping is reported. The maximum continuous-wave output power of 4.75 W is achieved at the incident pump power of 27.8 W, with an optical-to-optical efficiency of $\sim 17.1\%$ and a slope efficiency of $\sim 29.5\%$. The slope efficiency is up to 45.4% with respect to the absorbed pump power and nearly 1.7 times higher than the previous results ever reported under the 808 nm diode laser pumping. The beam quality is measured to be $M^2\sim 2.3$ at the output power of 4.75 W.

© 2013 Optical Society of America

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