基于LD双端面泵浦的Nd∶YAG高效率倍频激光器

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英文篇名：Experimental Study on High Efficiency Double Frequency Laser with LD Dual Pump Nd∶ YAG 作者：范嗣强 ; 李麒麟 ; 路永乐 英文作者：FAN Si-qiang;LI Qi-lin;LU Yong-le;Key Laboratory of Photoelectric Material and Engineering,Chongqing Normal University;Chongqing No.1 Middle School;Department of Photoelectric,Chongqing University of Posts and Telecommunications; 关键词：双端面泵浦 ; 被动调Q ; 腔内倍频 ; 部分偏振光 ; 高效率 英文关键词：double end-pumping;;passive Q-switched;;intracavitary frequency;;partially polarized light;;high efficiency 中文刊名：FGXB 英文刊名：Chinese Journal of Luminescence 机构：重庆师范大学市级高校光电材料与工程重点实验室;重庆市第一中学;重庆邮电大学光电学院; 出版日期：2018-06-07 出版单位：发光学报 年：2018 期：v.39 基金：重庆市教委应用基础研究项目(KJ1600311,KJ130655);; 重庆市科委前沿基础研究项目(cstc2014jcyj A70005);; 重庆市高校创新团队计划(CXTDX201601016)资助项目~~ 语种：中文; 页：FGXB201806012 页数：8 CN：06 ISSN：22-1116/O4 分类号：77-84

摘要

报道了一种利用激光二极管(LD)双端面泵浦的Nd∶YAG激光晶体,Cr~(4+)∶YAG晶体被动调Q,LBO临界相位匹配腔内倍频的高转换效率的绿光激光器。分析了双端面泵浦YAG激光器的热效应,实验中LD双端面泵浦,采用U型平行平面腔结构对Nd∶YAG进行传导冷却。当总泵浦光为33.8 W时,得到被动调Q频率10 KHz、功率8.21 W的线偏振基频光输出。6.72 W的绿光输出的倍频效率为86%,输出光束为基模,M~2为1.4。实验表明双端面泵浦YAG倍频激光器具有很高的转换效率。
        A high efficiency all-solid-state green laser was reported which was double end-pumped by the laser diode(LD)Nd∶YAG,passive Q-switched by Cr~(4+)∶YAG,and critical phase matched by LBO intracavity.The thermal effect of double end-pump YAG laser was analyzed.In the experiment,double end-pump of LD is used to conduct the conduction cooling of Nd∶YAG with the U-type parallel flat cavity structure.When the input power is 33.8 W,the output power of linear polarized light with 10 k Hz passive Q-switch is 8.21 W which leads to the output power instability of 6.72 W and frequency doubling efficiency of 86%.The output beam is the fundamental model and M~2reaches 1.4.The experiments show that the double end-pumped YAG frequency multiplication laser has quite high conversion efficiency.

引文

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