摘要
基于自调Q光纤激光器的基本理论,结合速率方程理论与自调Q特点,借助简化的环形腔掺Er3+光纤激光器模型,分析了泵浦功率与自调Q脉冲周期、峰值功率的关系.随着泵浦功率的增加,光纤激光器自调Q脉冲的周期减小,峰值功率变大;当信号光强足够大时,激光器的自调Q现象消失,变为准连续激光输出.通过MATLAB编程对光纤激光器输出特性进行了数值模拟,模拟结果与实验结果基本相符.
Based on theories of the self-Q-switch fiber lasers, rate equation theory and self-Q-switch characteristics, the relation of pump power to self-Q-switched pulse duration and peak power is analyzed in a ring cavity Er^3- doped fiber laser. It is found that the higher the pump power is, the shorter the duration of the self-Q-switch pulse becomes, with the greater peak power. When the signal power grows high enough, the phenomenon of self-Q-switch vanishes and a quasi-continuous laser is produced. The output characteristics of the Qswitched fiber laser are simulated with MATLAB, and the results agree with the experiment approximately.
出处
《光子学报》
EI
CAS
CSCD
北大核心
2007年第9期1570-1573,共4页
Acta Photonica Sinica
基金
国家自然科学基金重点项目(60137010)
国家自然科学基金(69977012)
天津市攻关项目(033183611)光电信息技术科学教育部重点实验室(南开大学
天津大学)资助
关键词
光纤激光器
自调Q
数值模拟
Fiber laser
Self-Q-switch
Numerical simulation
