【摘要】 用脉冲激光二极管阵列(LDA)作为泵浦源,微柱透镜阵列和透镜导管作为耦合系统,以As+注入GaAs可饱和吸收片作为被动调Q元件,实现了Nd:YVO4激光器每泵浦脉冲单调Q脉冲输出。获得调Q脉冲宽度为7ns,脉冲峰值功率为3.4kW,激光器调Q效率为26.8%。对泵浦脉冲峰值、脉冲宽度和重复频率对调Q脉冲特性的影响进行了实验研究,并对实验结果进行了讨论。更多还原

【Abstract】 A passively Q-switched pulse laser diode array（LDA）-pumped Nd:YVO₄ laser that uses As+ implanted GaAs as a saturable absorber is demonstrated.In the experiment,a Q-switching pulse width of 7 ns with a pulse energy of 23.5 μJ is achieved which is the shortest pulse width in a passively Q-switched Nd:YVO₄ laser using GaAs as saturable absorber.The laser produces only one Q-switching pulse in every pumping pulse duration with a Q-switching efficiency of 26.8%.We also investigate the characteristics of the Q-switched pulse by varying the pumping pulse amptitude,pulse width and repetition respectively.The experimental results are discussed as well.更多还原