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高频电光调Q板条激光器的第一脉冲控制

First pulse control on high frequency Q-switched slab laser

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摘要

Q开关激光器在高重复频率运行时,存在“第一脉冲现象”。这不仅在激光的很多工业应用中颇为不利,也会造成不必要的能量损失。基于激光速率方程, 以电光Q开关部分端面泵浦的板条激光器为例,建立了理论模型对电光Q开关激光器的脉冲输出及粒子数积累过程进行模拟。分析了“第一脉冲问题”的产生机理, 并提供了一种通过调制普克尔斯盒上电压脉冲的方法对第一脉冲能量加以控制的方案,并给出了通过这一方法控制第一脉冲问题的理论和实验结果。

Abstract

The first pulse problem is very popular in high repetition rate Q-switched laser, which is negative in the industry application. And it also leads to unnecessary energy loss. The mechanism of the first pulse control is analyzed on the partly end pumped E/O q-switched slab laser based on laser rate equations. A model of laser pulse generating is set up, by which the first pulse can be controlled by applying modulated high voltage on Pockels cell. The results of theory and experiments are also given.

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中图分类号:TN248.1

所属栏目:激光技术与器件

收稿日期:2008-05-09

修改稿日期:2008-10-23

网络出版日期:0001-01-01

作者单位    点击查看

刘晓萌:清华大学物理系, 北京 100084
胡培新:Edgewave GmbH, Würselen, 52146, Germany
李代军:Edgewave GmbH, Würselen, 52146, Germany
张恒利:北京理工大学信息科学技术学院, 北京 100081
吴念乐:清华大学物理系, 北京 100084
杜可明:Edgewave GmbH, Würselen, 52146, Germany
李师群:清华大学物理系, 北京 100084

联系人作者:刘晓萌(nwu@tsinghua.edu.cn)

备注:刘晓萌( 1979 - ),女,清华大学物理系博士研究生。

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引用该论文

LIU Xiao-meng,HU Pei-xin,LI Dai-jun,ZHANG Heng-li,WU Nian-le,DU Ke-ming,LI Shi-qun. First pulse control on high frequency Q-switched slab laser[J]. Chinese Journal of Quantum Electronics, 2009, 26(2): 155-160

刘晓萌,胡培新,李代军,张恒利,吴念乐,杜可明,李师群. 高频电光调Q板条激光器的第一脉冲控制[J]. 量子电子学报, 2009, 26(2): 155-160

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