Research on the peak power of pulses from dual-Q lasers

LD-pumped Nd:YVO4 solid-state lasers possess characteristics such as high efficiency, simplicity, compactness, and excellent beam quality. Higher peak power and narrower pulse width can be achieved through the use of a BBO single electro-optic Q-switching crystal. This article explores the incorporation of Cr4+:YAG in to a BBO single electro-optic Q-switching laser to form a dual-Q laser. Experiments have shown that, at a pumping power of10W, the pulse widths of the dual-Q laser and the single electro-optic Q-switching laser are 6.8ns and16.6nsrespectively. At a pumping power of 15W, the highest peak power achieved is 30KW, representing a 19.09%increase compared to the 25.19KW of the single electro-optic Q-switching laser.