被动调Q激光器的主动控制技术  

Actively-controllable Passively Q-switched Laser(CPQL)

作　　者：尹晓东[1] 刘武群[1] 梁哲[1] 霍玉晶[1] 

机构地区：[1]清华大学电子工程系,北京100084

出　　处：《光电技术应用》2005年第4期47-51,共5页Electro-Optic Technology Application

摘　　要：提出了一种对被动调Q激光器的主动控制技术.在普通的被动调Q激光器基础上外加一控制LD,控制LD的激光通过聚焦系统照射可饱和吸收体,影响饱和吸收体对被动调Q激光器的振荡激光的吸收系数,从而实现对被动调Q激光器工作状态的主动控制.通过控制该外加LD的开关时刻以及工作方式,可以精确控制被动调Q激光器输出激光脉冲的开始结束时刻以及脉冲重复频率.针对该新型激光器进行了理论讨论并给出了实验结果.与普通调Q激光器的工作性能相比,被主动控制的被动调Q激光器具有输出激光脉冲参数更稳定、工作状态可精确方便控制等优点,具有广阔应用前景.A new type of Q-switched pulsed lasers （CPQL,Controllable Passively Q-switched Laser） is presented. The laser is composite of a passively Q-switched laser with a saturable absorber and a controlling LD with a focus system. The performance of the laser output pulses, including pulse generation moment and repetition frequency, can be actively controlled by the operator with the controlling LD. The new type laser is discussed theoretically and the experiment results are present.Compare to the ordinary Q-switched laser, including passively Q-switched lasers and actively Q-switched lasers,CPQL＇s have higher performance and will find important applications in many fields.

关 键 词：脉冲激光器 被动调Q CR^4+ YAG 主动控制 CPQL 

分 类 号：TN248.34[电子电信—物理电子学] TN781