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A Yb:YAG disk laser with V-shaped stable resonator and active-mirror configuration,end-pumped by a 940-nm InGaAs laser diode array,is demonstrated.Performances and optimization of the disk laser at low temperature over a range of 130-200 K are investigated theoretically and experimentally.Laser output energy of 1.46 J/pulse operating at 10-Hz repetition rate is obtained with the optimum output coupler transmission of 30%,and the corresponding optical-to-optical efficiency is 48.7%. 相似文献
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利用受激喇曼激发加激光诱导电子荧光法(RELIEF)实现对氧气和空气中氧分子的标记示踪,用于氧气和空气流场的速度的测量. 实验装置测量氧气喷流的瞬时速度为45±5m /s,改进后精度可以优于1% ,并适合几个马赫的高速流场测量. 相似文献
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Yb:YAG薄片激光介质的温度效应 总被引:3,自引:0,他引:3
研究了Yb:YAG薄片激光器中影响激光介质温度的几个因素,理论和实验均表明减薄Yb:YAG片并增加抽运光被YAG片吸收的次数,是降低激光介质温度,提高激光器输出功率和效率的有效途径。用0.35mm厚的Yb:YAG薄片获得了15.9W的1.03um激光输出,斜率效率超过40%。 相似文献
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本文研究非线性互补问题(NCP)的求解算法,先将NCP转化为约束全局优化问题(CGOP),然后直接移植求解问题(CGOP)的水平值估计算法^[4,5]来求解问题(NCP).文章证明了算法对于NCP是收敛的,数值实验说明了算法的有效性. 相似文献
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Dynamic analysis of V-folded cavity for TEM_(00) operation of end-pumped solid-state laser 总被引:1,自引:0,他引:1
Based on graphic analysis design method of optical resonator, a simple design expression of V-folded cavity of end-pumped solid-state lasers with TEMoo operation is described, which satisfies two criterias of the resonator design. We give numerical simulation of spot size as a function of thermal focal length using this design approach whose advantages are validated experimentally. 相似文献
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序列脉冲倍频YAG激光器泵浦的氧气受激拉曼散射研究 总被引:2,自引:2,他引:0
对序列脉冲倍频YAG激光器泵浦的氧气受激拉曼散射进行了研究。对氧气的受激拉曼散射池的热传导过程进行了数值模拟计算,实验研究了序列脉冲倍频YAG激光器泵浦情况下氧气受激拉曼散射的热效应问题。 相似文献