LD泵浦铒镱共掺磷酸盐玻璃被动调Q微型激光器实验研究

1.5 m LD泵浦铒玻璃被动调Q微型激光器是目前军事激光测距的研究热门，获得较高的激光单脉冲能量尤为重要。对以波长为940 nm的二极管激光器作为泵浦源，Er3+/Yb3+共掺磷酸盐玻璃作为增益介质，Co2+:MgAl2O4作为调Q晶体的微型化激光器进行了实验研究。为获得LD抽运铒镱共掺磷酸盐玻璃被动调Q微型激光器的最佳能量输出条件，分析了影响LD泵浦被动调Q激光器输出单脉冲能量的因素，并对影响被动调Q微型激光器输出能量的泵浦条件，增益介质长度，输出镜反射率等参数进行了多组实验优化，最终获得了波长1.535 m，单脉冲能量113 J，脉宽6 ns，重复频率10 Hz，光束质量为1.2的稳定人眼安全激光输出。

Experimental study of LD-pumped erbium ytterbium co-doped phosphate glass passively Q-switched microlaser

1.5 m LD pumped erbium ytterbium co-doped phosphate glass passively Q-switched microlaser was currently laser ranging military hotspots, and to achieve high laser pulse energy was particularly important. Experimental study of miniaturized laser was using of 940 nm diode laser as the pump source, Er3+/Yb3+ co-doped phosphate glass as the gain medium, Co2+: MgAl2O4 as a Q-switched laser crystal miniaturization. In order to obtain LD-pumped erbium ytterbium co-doped phosphate glass microlaser passively Q the best energy output condition, factors of the LD-pumped erbium ytterbium co-doped phosphate glass passively Q-switched laser output pulse energy were analyzed. A lot of experiments were done on pump laser output power conditions, the length of the gain medium, the output mirror transmission and other parameter. Eventually stable laser output was obtained with wavelength of 1.535 m, single pulse energy of 13 J, pulse of 6 ns, repetition rate of 10 Hz, beam quality of 1.2.