摘要
采用Cr4+∶YAG晶体作为可饱和吸收体,实现连续激光二极管(LD)端面抽运的Nd∶YVO4激光器的高重复率被动调Q·在注入抽运功率为8.8W时,得到重复频率23.8kHz、平均功率1.21W的调Q脉冲序列;每个脉冲能量为51μJ、脉宽为25ns、峰值功率达到2.03kW·实验上研究了脉冲重复频率、平均输出功率、脉冲宽度、单脉冲能量与抽运功率、输出镜透过率的关系·实验结果表明,当抽运功率较大时,脉冲重复频率和输出平均功率随着抽运功率的增加而减小,对此进行了合理的理论解释·
The high repetition rate passively Q-switching of laser-diode end-pumped Nd ： YVO4 laser was realized by using Cr^4＋ s YAG as saturable absorber. The pulse train with average output power of 1. 21 W, repetition rate of 23.8 kHz, pulse width of 25 ns, pulse energy of 51 μJ and peak power of 2. 03 kW was obtained with the absorbed pump power of 8.8 W. The dependence of pulse repetition rate, average output power, pulse width and single pulse energy on pump power and the transmission of output mirror was experimentally carried out. The experimental results showed that the pulse repetition rate and average output power decreased with pump power increasing when the pump power reached a certain extent. The experiment results were reasonably analyzed and discussed.
出处
《光子学报》
EI
CAS
CSCD
北大核心
2006年第4期494-498,共5页
Acta Photonica Sinica
基金
国务院侨办科研基金(05QZR11)
福建省自然科学基金(A0310022)资助项目
