【摘要】 利用880nm激光二极管端面准连续抽运Nd…YVO4激光晶体,在采用六镜环形谐振腔设计并使激光器单向行波运转的基础上研制了一台稳定输出的全固态声光调Q单纵模脉冲激光器。通过在谐振腔中插入声光Q开关和复合标准具,获得了稳定运转的单纵模脉冲激光输出。进一步优化输出耦合镜透射率,可以压窄激光脉宽和提高单脉冲能量。当峰值抽运功率为29.1 W时,获得了重复频率为1kHz、脉冲宽度为23.5ns、单脉冲能量为1.64mJ的单纵模脉冲激光输出。该单脉冲能量在2.5h内的长期稳定性优于±1.3%。更多还原

【Abstract】 A stable all-solid-state single-longitudinal-mode acoustic-optic Q switched laser was developed based on a Nd…YVO4crystal quasi-continuously pumped by an 880 nm laser diode and unidirectional travelling wave laser operation achieved by a 6-mirror ring cavity.The stable single-longitudinal-mode pulsed laser operation was realized by inserting an acoustic-optic Q-switch and combined etalons in the cavity.With the optimization to the transmissivity of the output coupler,laser pulse width can be narrowed and the single pulse energy can be increased.Laser output with repetition rate of1 kHz,pulse width of 23.5ns and single pulse energy of 1.64 mJ was achieved at the peak pump power of 29.1W.This single pulse energy possesses a long-term stability better than±1.3% within 2.5h.更多还原