机构地区: 北京工业大学
出 处: 《强激光与粒子束》 2012年第5期1047-1051,共5页
摘 要: 报道了一种腔内六棒串接的脉冲Nd:YAG激光器。采用4×4矩阵对晶体棒失调角度对谐振腔光轴的影响进行了理论分析,给出了六棒串接脉冲激光器中晶体棒失调角度的允许范围。在串接实验中,谐振腔采用对称平平腔结构,通过调整每根晶体棒的失调角度到允许范围内,实现了六棒串接脉冲Nd:YAG激光器。在输入电功率86kW,占空比17%时,获得了平均功率3 018W的脉冲激光输出,峰值功率17.75kW,最高单脉冲能量为66J,光束参数乘积为26.3mm.mrad,电光转换效率3.5%,长时间工作不稳定性小于2%。 A six-rod series connection pulsed Nd:YAG laser was presented.4×4 matrices were used to theoretically analyze the deviation of optical axis effected by the offset angle of Nd:YAG rods in the resonator,and the tolerance of the offset angle is given.A plane-plane symmetrical resonator has been used in the experiment,and through adjusting the offset angle of all rods within the tolerance,the six-rod series connection pulsed Nd:YAG laser was achieved.With an input electric power of 86 kW and a duty cycle of 17%,an output laser with an average power of 3 018 W,a peak power of 17.75 kW,the maximum single pulse energy of 66 J and a beam parameters product of 26.3 mm·mrad was obtained.The electro-optical conversion efficiency was 3.5%,and the instability of the laser was less than 2%.
领 域: [电子电信]