A c-cut Nd:GdVO₄ solid-state laser passively Q-switched with Co²⁺:LaMgAl₁₁O₁₉ lasing at 1.34 μm

Abstract

We investigated a high power diode-laser pumped passively Q-switched c-cut Nd:GdVO 4 solid-state laser, lasing at 1.34 μm, with a Co 2+ :LaMgAl 11 O 19 saturable absorber. With the optimum output coupler transmission T =5.5% and pump power of 11.5 W, the static output power of 3.01 W was obtained. The passively Q-switching operation with Co:LMA (initial transmission T 0 =90%) as saturable absorber, shows that the shortest output pulse width, the highest output power, the highest pulse repetition and the highest pulse peak power were 32 ns, 266 mW, 277 kHz, and 187 W, respectively.