Abstract
A novel solid-state laser material of composite all-ceramic Yb:Y3Al5O12 is evaluated as a high-power, diode edge-pumped microchip laser. 520 W quasi-continuous-wave (quasi-cw; 10ms with 10Hz) and 414 W continuous-wave (cw) output powers were successfully obtained at incident pump powers of 997 W in quasi-cw and 946 W in cw operation, respectively, from the 3-mm-diameter, Yb doped ceramic core. The cw output power densities of 5.9 kW/cm2 and 0.29 MW/cm3 in the core area and volume, respectively, are the highest as the active-mirror solid-state lasers1.
© 2007 IEEE
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