| 自调Q光纤激光器的理论分析和数值模拟 |
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| 引用本文： | 李勇男,董连永,谢春霞,孙立萍,范宇,段云峰,吕福云. 自调Q光纤激光器的理论分析和数值模拟[J]. 光子学报, 2007, 36(9): 1570-1573 |
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| 作者姓名： | 李勇男 董连永 谢春霞 孙立萍 范宇 段云峰 吕福云 |
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| 作者单位： | 南开大学物理科学学院光电信息科学系,天津,300071;南开大学物理科学学院光电信息科学系,天津,300071;南开大学物理科学学院光电信息科学系,天津,300071;南开大学物理科学学院光电信息科学系,天津,300071;南开大学物理科学学院光电信息科学系,天津,300071;南开大学物理科学学院光电信息科学系,天津,300071;南开大学物理科学学院光电信息科学系,天津,300071 |
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| 基金项目： | 国家自然科学基金 , 国家自然科学基金 , 天津市科技攻关项目 , 光电信息技术科学教育部重点实验室(南开大学、天津大学)资助项目 |
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| 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.
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| 关 键 词： | 光纤激光器 自调Q 数值模拟 |
| 文章编号： | 1004-4213（2007）09-1570-4 |
| 收稿时间： | 2005-11-01 |
| 修稿时间： | 2005-11-01 |
Analysis of Theory and Simulation of the Self-Q-switched Fiber Lasers |
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| LI Yong-nan,DONG Lian-yong,XIE Chun-xia,SUN Li-ping,FAN Yu,DUAN Yun-feng,L Fu-yun. Analysis of Theory and Simulation of the Self-Q-switched Fiber Lasers[J]. Acta Photonica Sinica, 2007, 36(9): 1570-1573 |
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| Authors: | LI Yong-nan DONG Lian-yong XIE Chun-xia SUN Li-ping FAN Yu DUAN Yun-feng L Fu-yun |
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| Affiliation: | Department of Photoelectricity lrzformation Science of Physics lnstitute, Nnaka i University, Tianjin, 300071, China |
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| Abstract: | 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 Er3 - 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 Q-switched fiber laser are simulated with MATLAB, and the results agree with the experiment approximately. |
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| Keywords: | Fiber laser Self-Q-switch Numerical simulation |
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