6 March 2013 Power-scaling of Pr:YAlO3 laser operating in CW regime at 747 nm and 720 nm wavelengths
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We report efficient continuous-wave laser operation of laser-diode pumped Pr:YAlO3 crystal in the power-scaled resonator arrangement. Using two pumping GaN-laser-diodes emitting at 448 nm wavelengths with a maximum output power of 1 W each, 290 mW of Pr:YAlO3 output power in the near-infrared spectral region (747 nm) with oscillation threshold of about 500 mW has been reached. The maximum absorbed pump power was approximately 1.5 W resulting in the slope efficiency of 28 %. Moreover, switchable laser operation at two wavelengths (747 nm and 720 nm) has been demonstrated employing the broadband laser resonator mirrors in connection with the tuning element (Lyot filter).
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Martin Fibrich, Martin Fibrich, Helena Jelínková, Helena Jelínková, "Power-scaling of Pr:YAlO3 laser operating in CW regime at 747 nm and 720 nm wavelengths", Proc. SPIE 8599, Solid State Lasers XXII: Technology and Devices, 85991S (6 March 2013); doi: 10.1117/12.2001096; https://doi.org/10.1117/12.2001096

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