High-Power Single- and Dual-Wavelength Nd:GdVO_4 Lasers with Potential Application for the Treatment of Telangiectasia

摘要

Diode-end-pumped high-power Nd:GdVO_4 lasers at 1083nm are presented. The maximum continuous-wave output power was 10.1 W with an optical conversion efficiency of 31.3%. For acoustooptic (AO) Q-switched operation, the largest pulse energy, shortest pulse width, and highest peak power were 111μJ, 77 ns, and 1.44kW, respectively. By decreasing the 1063nm transmission of the output coupler, we also achieved efficient CW dual-wavelength operation at 1083 and 1063nm. Their total output power reached 6.7 W, and the optical conversion efficiency reached 31.6%. These lasers have special requirements in the treatment of facial telangiectasia.