光子学报, 2005, 34 (2): 169, 网络出版: 2006-06-12
LD泵浦Nd:YVO4晶体GaAs被动调Q激光理论和实验研究
Theoretical and Experimental Study of a Laser-diode-pumped Passively Q-switched Nd: YVO4 Laser with GaAs Saturable Absorber
空间分布 热效应 LD泵浦 被动调Q 数值解 Spatial distribution Thermal effect LD pumped Passively Q-switched Numerical solutions
摘要
考虑LD泵浦光强和腔内振荡光强的空间高斯分布以及晶体热效应的影响,给出了Nd:YVO4晶体GaAs被动调Q1.06μm激光的耦合速率方程组,数值求解该方程组获得了输出激光的平均输出功率、脉冲宽度、重复率随泵浦功率的变化特性,所得理论值与实验结果相符.
Abstract
By considering the Guassian distribution of the pump beam and the thermal effect in the gain medium, the coupled rate equations of a LD pumped passively Q switched Nd∶YVO4 laser at 1.06μm with GaAs are given. The theoretical average output power , pulse width,pulse repetition of the laser are obtained by the numerical solution of the rate equations. The experimental results agree with the numerical solutions of the coupled rate equations.
杨克建, 赵圣之, 赵宏明, 李桂秋. LD泵浦Nd:YVO4晶体GaAs被动调Q激光理论和实验研究[J]. 光子学报, 2005, 34(2): 169. 杨克建, 赵圣之, 赵宏明, 李桂秋. Theoretical and Experimental Study of a Laser-diode-pumped Passively Q-switched Nd: YVO4 Laser with GaAs Saturable Absorber[J]. ACTA PHOTONICA SINICA, 2005, 34(2): 169.