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Cr^4+:YAG被动调Q激光器输出特性的解析分析
引用本文:闫新琦,李远,李坤,孙年春.Cr^4+:YAG被动调Q激光器输出特性的解析分析[J].光学与光电技术,2008,6(6):75-78.
作者姓名:闫新琦  李远  李坤  孙年春
作者单位:四川大学电子信息学院,四川,成都,610064
摘    要:在考虑Cr^4+:YAG晶体激发态吸收的情况下,给出了Cr^4+:YAG被动调Q的Nd:YAG激光器的速率方程组,从该速率方程组出发推导出了Nd:YAG被动调Q激光器的输出能量、脉冲宽度和效率的解析解,并分析了各参量之间的相互耦合关系。结果表明,在考虑了Cr^4+:YAG晶体激发态吸收的情况下,理论上能够正确地反应出Cr^4+:YAG晶体的吸收特性,对设计和优化Cr^4+:YAG被动调Q激光器有一定的指导意义。

关 键 词:激光器  速率方程组  被动调Q  激发态吸收
收稿时间:2008/4/8

Output Characteristics for Cr4+:YAG Passively O-Switched Laser
YAN Xin-qi,LI Yuan,LI kun,SUN Nian-chun.Output Characteristics for Cr4+:YAG Passively O-Switched Laser[J].optics&optoelectronic technology,2008,6(6):75-78.
Authors:YAN Xin-qi  LI Yuan  LI kun  SUN Nian-chun
Institution:YAN Xin-qi LI Yuan LI kun SUN Nian-chun(School of electronics , information engineering of Sichuan University,Chengdu 610064,China)
Abstract:The rate equations of Nd∶YAG laser passively Q-switched for Cr4+∶YAG is provided when the impact of Cr4+∶YAG excited state absorption is considered. The analytical solution about output energy, pulse width and energy efficiency of Nd∶YAG passively Q-switched laser by Cr4+∶YAG is obtained from the rate equations. The analytical solution is tested by the numerical simulation, and the coupling relation of laser parameters is analyzed. The results show that the theories can exactly express absorption characteristics of Cr4+∶YAG crystals while the Cr4+∶YAG crystals excited state absorption is considered.
Keywords:laser  rate equations  passively Q-switched  excited state absorption  
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