Efficient laser operation based on transparent Nd:Lu2O3 ceramic fabricated by Spark Plasma Sintering.

ABSTRACT

Efficient laser operation of NdLu2O3 ceramic fabricated by Spark Plasma Sintering (SPS) was demonstrated. Transparent NdLu2O3 ceramic was successfully fabricated by Spark Plasma Sintering and its laser experiment was done. On the 4F3/2 to 4I11/2 transition, the obtained maximum output is 1.25W at the absorbed pump power of 4.15W with a slope efficiency of 38% and two spectral lines at 1076.7nm and 1080.8nm oscillated simultaneously. The slope efficiency of 38% is near two times higher than the previously demonstrated SPSed NdLu2O3 ceramic lasers. On the 4F3/2 to 4I13/2 transition, the laser operated at the wavelength of 1359.7nm and the maximum output of 200mW was obtained at the absorbed pump power of 2.7W.