灯泵浦非稳脉冲调QNd:YAG固体激光器特性模拟(英文)  

Performance Simulations for Flashlamp-Pumped Pulsed Q-switched Nd:YAG Laser with Unstable Resonator

作　　者：孙峰[1] 叶艾[1] 张洪波[1] 刘再洲[1] 

机构地区：[1]华中光电技术研究所,武汉430073

出　　处：《光学与光电技术》2005年第2期6-8,共3页Optics & Optoelectronic Technology

摘　　要：对实际固体激光器谐振腔的特性分析常常采用经验公式的模型进行预测和研究。从非稳腔衍射积分方程和激光介质速率方程出发,利用GLAD程序计算并模拟了电光调Q非稳折叠腔Nd:YAG激光器的输出光束特性,得到了近场和远场的能量分布以及脉冲宽度波形,计算结果对试验具有指导意义。Generally Q-switched laser is always characterized with empirically derived mathematical model. In this paper laser action at Q-switch with flashlamp pumping in Nd:YAG laser rod has been modeled and simulated with the code GLAD. The laser uses folded positive branch confocal unstable resonator with electro-optical Q-switcher. It provides an output pulse width of 4.5 ns at 1 Hz repetition rate and the full width of 0.21 mm at 1/e2 of the peak energy with a near-diffraction-limited beam. The results calculated can be used to direct designs and experiments for solid-state laser.

关 键 词：ND:YAG激光器 调Q 非稳腔 

分 类 号：TN248.1[电子电信—物理电子学]